JP2001022728A - Reproduction relative data totalization system, set-top box, and system and method for high-sensitivity user extraction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extract a high-sensitivity user by efficiently gathering and totalizing questionnaire data when hits of contents as electronic data are predicted. SOLUTION: The high-sensitivity user extraction system is equipped with a data input means which inputs a reproduction record showing that contents written to a recording medium have been reproduced, data for the individual authentication of the user of the recording medium and sale data on the contents, a matching rate arithmetic means which calculates the rate of matching between the sale data and reproduction record, and a high-sensitivity user extracting means which extracts a user having a superior matching rate calculated by the matching rate arithmetic means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Prior Art] (Prediction of hits of general products) Whether or not a new product hits is a so-called "complex" phenomenon.
Each person follows simple rules, but the whole is complex and dynamic. The phenomenon of a new product hit is often a phenomenon that depends on the actions of others, and it is extremely difficult to predict who will be affected where and how much from others, and the interaction is strong .

[0002] Therefore, when marketing a new product as a hit prediction, the time series data (so-called P
Methods such as performing analysis using OS data), distributing product samples, and asking them to cooperate with a questionnaire after distributing (CP test = concept product test) are generally performed. Therefore, the accuracy of hit prediction is low.

(Music and Music Hit Prediction) For music and music whose so-called "content" is a product, a hit prediction different from that of a normal product is required. This is because, unlike a product that can be used once to judge whether it is good or bad, repeated listening recognizes a “favorite song” and leads to the phenomenon of “hit”.

Therefore, hit prediction of music or music has not been systematically attempted. At best, the momentum of sales immediately after the release date and the degree of prediction are predicted by experts'"contract".

[0005]

[Problems to be Solved by the Invention] (Difficulty of hit prediction) When the content is a movie, music, or the like, which is a product, the new content itself must be shown or listened to before the release. It is difficult to predict hits than normal hardware products.

[0006] In the case of music, the "exposure effect" is greater than other content products, and hit prediction is more difficult. The “exposure effect” means that the more you touch, the more you like, and the more hits you hear in the world, the more you like. Therefore, if the user likes and listens only once and evaluates “likes and dislikes”, the exposure effect does not work, and the result tends to be different from the actual “likes and dislikes” for the person. Therefore, it is difficult to perform the CP test.

In addition, in the case of music, there is a characteristic that "you listen as many times as you like, but do not listen repeatedly if you dislike". In addition, the taste and rating ability for music
The individual differences are extremely large. Therefore, there is a demand to extract individuals (high-sensitivity users) who have a popular taste and high evaluation ability, excluding individual differences in taste and evaluation ability. However, there has not been a rational method for extracting high-sensitivity users.

(Conditions for High-Precision Hit Prediction) In order to perform high-precision hit prediction, first, it is necessary to appropriately evaluate an individual's "like / dislike". For that purpose, it is necessary to prepare an environment in which the subject can sufficiently listen to the music, and to grasp the evaluation of “like and dislike” after the questionnaire based on the questionnaire and the viewing situation.

Second, it is necessary to fix a criterion of a judgment subject as to who should make a prediction based on “likes and dislikes”. For example, it can be understood that an individual who hits a song that answered "like" at the test stage in the history so far has a popular taste and high evaluation ability. An object of the present invention is to solve the problem of hit prediction of contents as electronic data, and to provide a technique for efficiently collecting and counting questionnaire data and extracting highly sensitive users.

It is an object of the present invention to provide a reproduction / recording / reading system capable of collecting data relating to hit prediction of contents as electronic data. It is another object of the present invention to provide a set-top box capable of collecting data relating to hit prediction of content as electronic data.

It is another object of the present invention to provide an apparatus for securing high-sensitivity users. Claims 14 and 15
An object of the described invention is to provide a method for securing high-sensitivity users.

[0012]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. (Claim 1) The invention according to claim 1 is a content writing means for writing a content as electronic data to a recording medium capable of recording a reproduction record indicating that the written content has been reproduced, and a content written on the recording medium. The present invention relates to a reproduction-related data totaling system including a reproduction record storage unit that reads and stores a reproduction record.

(Definition of terms) "Content" refers to music (music), application software, game software, photographs (for example, talent photographs), movies, and the like.
The “content writing unit” is, for example, a device that distributes the above-mentioned content for free or for a fee.

The "recording medium" is a medium on which electronic data can be recorded and reproduced, such as an MD (mini-disc), a CD-RW, a DVD-ROM, a flash memory card, a compact flash, a smart media, and a memory stick. It depends on the type of content and the playback device. “Reproduction recording” is the number of times of reproduction, the time, and the like.

(Operation) First, the content as electronic data is written to the recording medium by the content writing means. When the written content is reproduced, the reproduced reproduction record is written to a recording medium. Subsequently, the reproduction record storage unit reads and stores the reproduction record written on the recording medium. Here, the content provider can acquire the reproduction and recording data of the content.

(Claim 2) The invention according to claim 2 is a content writing means for writing content as electronic data to a recording medium, a reproducing means for reproducing content stored on the recording medium, and the reproducing means reproducing the content. And a content recording means for reading and storing the reproduction record written on the recording medium, the content writing means comprising a reproduction record storage means for reading and storing the reproduction record written on the recording medium. .

(Explanation of terms) The "reproducing means" differs depending on the type of content. For example, if the content is music, it is a player device with a speaker, if it is a movie, it is a player device with a display and a speaker for reproducing images, and if it is game software, it is a display device. And a speaker device including a speaker and operation input means.

(Operation) First, the content as electronic data is written to the recording medium by the content writing means. The written content is reproduced by the reproducing device. When the written content is reproduced, the reproduced reproduction record is recorded on the recording medium by the reproduction record writing means.

Subsequently, the reproduction record storage means reads and stores the reproduction record written on the recording medium. Here, the content provider can acquire the reproduction and recording data of the content. (Claim 3) The invention according to claim 3 limits the reproduction-related data totaling system according to claim 1 or 2, and when there are a plurality of contents stored in a recording medium, the reproduced contents Are related to a reproduction-related data totaling system including a sorting means for rearranging the data in the order of reproduction frequency.

(Operation) The sorting means sorts the contents in the order of reproduction frequency based on the reproduction and recording of the contents. Then, the content provider can acquire not only the reproduction record data of the content but also the order record obtained by simplifying the reproduction record data. (Claim 4) The invention according to claim 4 limits the reproduction-related data totaling system according to claim 1, 2 or 3, wherein the content writing means outputs a questionnaire for outputting the contents of the questionnaire. The present invention relates to a reproduction-related data totaling system including output means, answer input means for inputting an answer to a questionnaire, and answer data recording means for recording answer data input to the answer input means.

(Explanation of terms) A "questionnaire" is a questionnaire such as "whether or not he / she liked" the content previously written by the content writing means, and was recorded on a recording medium in principle. This is a questionnaire related to content. But,
When the present invention aims at efficient collection and processing of questionnaires, the questionnaire may have little or no relation to the content.

The "questionnaire output means" includes a device for printing the contents of a questionnaire on a paper medium, a display device for displaying the contents of the questionnaire, and the like, and a display device is preferable for the purpose of conveniently compiling the results of the questionnaire. The “answer input unit” is, for example, a touch panel input device in the case of a display device that displays the contents of a questionnaire. When the contents of the questionnaire are printed on a paper medium, it is means for reading the written answer, for example, a mark sheet reader.

(Operation) When the content writing means writes the content, the questionnaire output means outputs the content of the questionnaire. Answers to the contents of the questionnaire are input by answer input means. And the answer data is
Answer data recording means records. Since the questionnaire is output when writing the content, the content provider can easily collect the questionnaire. In addition, since the input questionnaire is also recorded on the spot, it contributes to reducing the trouble of data processing.

Note that the content writing means may be controlled so as not to write new content when there is no answer to the questionnaire.
By doing so, the collection rate of the questionnaire can be increased. (Claim 5) The invention according to claim 5 is a content writing means for writing content as electronic data to a recording medium, a questionnaire output means for outputting questionnaire contents,
The present invention relates to a reproduction-related data totaling system comprising: answer input means for inputting an answer to a questionnaire; and answer data recording means for recording answer data input to the answer input means.

In the case where a questionnaire on the already recorded content is made before writing new content, the questionnaire output means recognizes what content is already recorded before writing. Means, and a selection means for selecting and outputting the contents of the questionnaire corresponding to the content.

(Operation) First, the content as electronic data is written to the recording medium by the content writing means. For example, if a user who enjoys the content of the recording medium tries to write new content,
The questionnaire output means outputs the content of the questionnaire. When a user answers a questionnaire, an answer input unit is used.
The answer data input by the answer input means is recorded by the answer data recording means. Here, the content provider can acquire the questionnaire response data.

(Claim 6) The invention according to claim 6 is a limited version of the reproduction-related data totaling system according to claim 1, 2, 3, or 4 and is a recording system in which contents are recorded. The present invention relates to a reproduction-related data totaling system in which personal authentication data of a user is recorded in advance on a medium, and the reproduction recording storage means can store the personal authentication data together with reproduction recording.

(Function) Data for recording the user's personal authentication is recorded in advance on the recording medium on which the content is recorded, and the reproduction record is stored in association with the personal authentication data, which is useful for later data processing. (Claim 7) The invention according to claim 7 is a limitation of the reproduction-related data totaling system according to claim 5, wherein data for personal authentication of a user is recorded in advance on a recording medium on which contents are recorded. The answer data recording means relates to a reproduction-related data totaling system in which the personal authentication data can be stored together with the answer data.

(Operation) In the recording medium on which the content is recorded, personal authentication data of the user is recorded in advance, and the answer data is stored in association with the personal authentication data, which is useful for later data processing. (Claim 8) The invention according to claim 8 is a communication means capable of connecting to the Internet, a content writing means for recording a content as electronic data obtained using the communication means on a recording medium, and the recording medium Playback means for playing back the content stored in the storage means, and playback record writing means for recording a playback record indicating that the playback means has played back, wherein the communication means can transmit the playback record recorded by the playback record writing means And a set-top box.

(Explanation of Terms) The recording medium for recording contents may be provided in the set-top box, or may be detachable from the set-top box. (Operation) A connection to the Internet is obtained by the communication means, contents are obtained, and the contents are recorded on a recording medium by the contents writing means. The content stored in the recording medium can be freely reproduced by the reproducing means.

The reproduction record writing means records a reproduction record indicating that the reproduction means has reproduced. Then, the communication unit transmits the reproduction record recorded by the reproduction record writing unit. Here, reproduction and recording data of the content can be obtained. (Claim 9) The invention according to claim 9 limits the set-top box according to claim 8, wherein the communication means is capable of transmitting individual authentication data of the set-top box together with reproduction / recording. Pertaining to the top box.

(Operation) The individual authentication data of the set-top box can be transmitted together with the reproduction record, and the reproduction record is stored in association with the individual authentication data, which is useful for later data processing. (Claim 10) The invention according to claim 10 is a communication means capable of connecting to the Internet, a content writing means for recording the content as electronic data obtained by using the communication means on a recording medium, and the recording medium Reproducing means for reproducing the content stored in the recording medium; questionnaire outputting means for outputting to the user a questionnaire for the already recorded content when the content writing means records new content on a recording medium; And answer input means for inputting an answer to the questionnaire, wherein the communication means receives the content of the questionnaire to the questionnaire output means and transmits the answer to the questionnaire.

(Operation) A connection to the Internet is obtained by the communication means, contents are obtained, and the contents are recorded on a recording medium by the contents writing means. The content stored in the recording medium can be freely reproduced by the reproducing means.
When a user who enjoys the contents of the recording medium tries to download new contents, the questionnaire output means outputs the contents of the questionnaire through the communication means.

When the user answers the questionnaire, an answer input unit is used. The response data input by the response input means is transmitted by the communication means. Here, the content provider can acquire the questionnaire response data. (Claim 11) The invention according to claim 11 is a limitation on the set-top box according to claim 10, wherein the communication means transmits the individual authentication data of the set-top box,
It relates to a set-top box that can be sent together with a response to a questionnaire.

(Operation) The data for individual authentication of the set-top box can be transmitted together with the questionnaire response data, and the questionnaire response data is stored in association with the individual authentication data, which is useful for later data processing. (Twelfth aspect) According to the twelfth aspect, a reproduction record indicating that the content written on the recording medium has been reproduced, data for personal authentication of a user of the recording medium, and sales data of the content are input. A data input unit; a coincidence ratio calculating unit for calculating a coincidence ratio between the sales data and the reproduction / recording; and a high-sensitivity user extraction unit for extracting a user excellent in the coincidence ratio calculated by the coincidence ratio calculation unit. The present invention relates to a sensitivity user extraction system.

(Operation) The data input means inputs a reproduction record indicating that the content written on the recording medium has been reproduced, data for personal authentication of a user of the recording medium, and sales data of the content. Then, the coincidence rate calculating means calculates the coincidence rate between the sales data and the reproduction record,
A high-sensitivity user extraction unit extracts a high-sensitivity user with an excellent matching rate. Here, it is possible to know a highly sensitive user who is excellent in predicting the sales of content.

(Claim 13) The invention according to claim 13 is
When rewriting content written on a recording medium to another content, answer data of a questionnaire conducted on the content before rewriting, personal authentication data of a user who answered the questionnaire, and sales data of the content A data input means for inputting the data, a coincidence rate calculation means for calculating a coincidence rate between the sales data and the answer data, and a high-sensitivity user extraction means for extracting a user having an excellent coincidence rate calculated by the coincidence rate calculation means. And a high-sensitivity user extraction system comprising:

(Operation) The data input means, when rewriting the content written on the recording medium to another content, responds to a questionnaire performed on the content before rewriting and the user who responded to the questionnaire. The personal authentication data and the sales data of the content are input. Then, the matching rate calculating means calculates the matching rate between the sales data and the answer data, and the high-sensitivity user extracting means extracts a high-sensitivity user having an excellent matching rate. Here, it is possible to know a highly sensitive user who is excellent in predicting the sales of content.

(Claim 14) The invention according to claim 14 is
A reproduction record indicating that the content written on the recording medium has been reproduced, data for personal authentication of a user of the recording medium, a data input procedure for inputting sales data of the content, and matching of the sales data with the reproduction recording. The present invention relates to a high-sensitivity user extraction method including a coincidence rate calculation procedure for calculating a ratio, and a high-sensitivity user extraction procedure for extracting a user having an excellent match rate calculated by the coincidence rate calculation procedure.

(Claim 15) The invention according to claim 15 is
When rewriting content written on a recording medium to another content, answer data of a questionnaire conducted on the content before rewriting, personal authentication data of a user who answered the questionnaire, and sales data of the content A data input procedure for inputting the data, a match rate calculation procedure for calculating a match rate between the sales data and the answer data, and a high-sensitivity user extraction procedure for extracting a user with an excellent match rate calculated by the match rate calculation procedure. And a high-sensitivity user extraction method comprising:

[0041]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments and drawings. The drawings used here are FIGS. 1 to 6. FIG. 1 is a conceptual diagram showing a use situation in the first embodiment of the present invention. FIG. 2 is a conceptual diagram showing a use situation according to the second embodiment of the present invention. FIG. 3 is a conceptual diagram showing a relationship between a user, a data center, and the like in the first embodiment of the present invention. FIG. 4 is a conceptual diagram showing a relationship between a user, a data center, and the like in the second embodiment of the present invention. FIG. 5 is a conceptual diagram showing a procedure of data processing in the data center. FIG. 6 is a conceptual diagram showing a use situation in the third embodiment of the present invention.
Note that “MMK” in the figure is a multimedia kiosk.

(First Embodiment) A first embodiment will be described with reference to FIG. 1 and FIG. As shown in FIG. 3, from the music database of the data center,
New music is regularly distributed to multimedia kiosks. It is assumed that this new musical piece is a musical piece sung by five newcomers (five sets) being sold by a certain production on a trial basis. And as a production,
In order to promote the promotion of five newcomers in a financially efficient manner, he wants to conduct a preliminary survey for the purpose of focusing on only two people in a large campaign.

The new musical composition delivered to the multimedia kiosk is written on a recording medium (here, an MD) in the multimedia kiosk, and the new musical composition is distributed to a large number of users free of charge. The new music is updated on a target (for example, every week) basis. In addition,
In order to enable personal authentication of the user, a new music piece cannot be written unless a recording medium on which personal authentication data (user ID) is recorded in advance is used.

A device for writing a new musical piece to a recording medium in a multi-media kiosk may correspond to a plurality of types of recording media. The user who has received the recording medium on which the new musical composition is recorded can enjoy the new musical composition using the playback device (MD player). The playback device is a dedicated product that is capable of writing the number of times of playback (playback recording) for each song on a recording medium.
The reproduction record may be not the number of times of reproduction but the time of reproduction. Even in this case, the number of times of reproduction may be recorded in the data center.

In the multimedia kiosk, when updating to a new musical piece, the information on the reproduction and recording can be read. Then, the reproduction record is transmitted to the data center together with the user ID. It should be noted that the transmission may be collectively transmitted after the reproduction records from a predetermined number of users are collected, or may be transmitted for each user. In the latter case,
There is an advantage that a recording device for reproduction recording in a multimedia kiosk can be saved or omitted.

The above-mentioned reproducing apparatus may be provided with a sorting means for rearranging the reproduced contents in order of reproduction frequency. Alternatively, in the multimedia kiosk, only the information of the reproduction order rearranged in the reproduction frequency order by the sorting means may be read, and the reproduction order may be transmitted to the data center together with the user ID. Playback record and user ID sent to data center
Is stored in a dedicated database. In the data center, reproduction records for each piece of music collected from a large number of users are collected, so that it is possible to rank five newcomers. Thus, a production can be a rating for five people and a resource for selecting two people for a big campaign.

As described above, new music pieces are free of charge,
With the above-described mechanism of being regularly distributed, a subjective impression of a new musical piece after repeated listening can be collected as data that can be easily processed. (Second Embodiment) Referring to FIGS. 2 and 4,
The second embodiment will be described in comparison with the first embodiment.

In the first embodiment, the “reproduction record” is downloaded by the multimedia kiosk and transmitted to the data center. In the second embodiment, instead of collecting the reproduction record, the multi-media kiosk collects the “reproduction record”. At the time of updating to a new music piece in the media kiosk, a questionnaire is output to the user. Questionnaire output means (liquid crystal display and speaker not shown) for outputting questionnaire contents to the multimedia kiosk
Answer input means (touch panel of a liquid crystal display) for inputting an answer to the questionnaire, and answer data recording means for recording the answer data input to the answer input means.

Since the contents of the questionnaire must be a questionnaire relating to the content recorded on the recording medium, the data center determines, based on the user ID, what the content recorded on the recording medium of the user is. I know. Then, when the multimedia kiosk reads the user ID from the recording medium, a corresponding questionnaire can be output.

The questionnaire output means includes a recognition means for recognizing what content is already recorded before writing, and a selection means for selecting and outputting a questionnaire content corresponding to the content. May be provided. The contents of the questionnaire include, as shown in FIG. 2, a subjective opinion such as “I like or dislike” for each new musical piece already written on the recording medium, and “Selling or not” separately from likes and dislikes. It is a questionnaire with objective evaluation. The subjective opinion is useful as data such as so-called "popularity" or "favorableness", and the rate of coincidence with the fact to the objective evaluation is useful as data for extracting so-called high-sensitivity users.
When the answer to the questionnaire is not input, the collection rate of the questionnaire may be increased by controlling not to update the new musical composition.

The answer data input by the user using the answer input means is transmitted to the data center together with the user ID of the recording medium, and is constructed as a database. In the data center, a questionnaire for each song collected from a large number of users is collected, so that ranking of five newcomers can be performed. Thus, a production can be a rating for five people and a resource for selecting two people for a big campaign.

(FIG. 5) Next, a description will be given based on FIG. FIG. 5 conceptually shows a procedure for extracting a “high-sensitivity user” having a high hit prediction rate from a large number of users. In other words, this is a mechanism in which objective evaluation data of a newcomer singing a new musical piece by a plurality of users and fact data of the number of CDs sold after a predetermined period are counted.

By repeating the distribution of the new music and the collection of the questionnaire for several weeks, a database is constructed which can rank the users with the highest hit ratio with the high match rate with the fact data. (Third Embodiment) What has been described with reference to FIGS. 1 and 2 is mainly a multimedia kiosk, a data center located before and after the kiosk, and a device located at a user. However, without going through a multimedia kiosk, even in a set-top box as described in FIG.
As described above, data collection regarding content hit prediction can be performed.

The set-top box is an Internet connection device that can be easily used as home electric appliances at home. Communication means capable of connecting to the Internet, content writing means for recording content as electronic data obtained using the communication means on a recording medium, reproduction means for reproducing content stored on the recording medium, Reproduction recording means for recording a reproduction record indicating that the reproduction means has reproduced. The communication means is capable of transmitting the reproduction record recorded by the reproduction record writing means together with the individual authentication data of the set-top box. As the data for individual authentication, it is possible to install it as heartware in communication means in the set-top box. For example, an e-mail address acquired for Internet connection can be used.

In the case of such a set-top box, the reproduction record recorded by the reproduction recording / writing means is transmitted via the communication means.
It is possible to acquire the reproduction record data of the content. As a user, there is an advantage that there is no need to go to a multimedia kiosk, and as a data center operator, there is no need to set up a multimedia kiosk.

Although not shown, it is also possible to output a questionnaire and collect the answer instead of reproducing and recording. That is, such a set-top box includes questionnaire output means for outputting a questionnaire for the already recorded content to the user when the content writing means records new content on the recording medium, An answer input means for inputting an answer to the questionnaire is provided. Furthermore,
The communication means is capable of receiving the contents of the questionnaire to the questionnaire output means and transmitting an answer to the questionnaire.

When the user who enjoyed the content tries to download new content, the questionnaire output means outputs the content of the questionnaire through the communication means. When the user answers the questionnaire, an answer input unit is used. The response data input by the response input means is transmitted by the communication means. Here, the data center can acquire the questionnaire response data.

If there is a question regarding the objective evaluation in the questionnaire question and there is fact data such as sales after a predetermined period, the data for extracting favorable users by using the individual authentication data of the set-top box. Can also be used.

[0059]

According to the first to seventh aspects of the present invention, it is possible to provide a reproduction / recording / reading system capable of collecting data relating to hit prediction of contents as electronic data. Further, according to the inventions set forth in claims 8 to 11, it is possible to provide a set-top box capable of collecting data relating to hit prediction of content as electronic data.

According to the twelfth and thirteenth aspects, it is possible to provide an apparatus for securing high-sensitivity users. Claim 14 and claim 1
According to the invention described in the fifth aspect, it is possible to provide a method for securing high-sensitivity users.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a use situation according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a use situation according to a second embodiment of the present invention.

FIG. 3 is a conceptual diagram showing a relationship between a user, a data center, and the like in the first embodiment of the present invention.

FIG. 4 is a conceptual diagram illustrating a relationship between a user, a data center, and the like in a second embodiment of the present invention.

FIG. 5 is a conceptual diagram showing a procedure of data processing in a data center.

FIG. 6 is a conceptual diagram showing a use situation in a third embodiment of the present invention.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5B049 AA06 BB11 BB25 BB49 CC05 DD05 EE01 EE02 EE05 EE23 FF03 FF06 FF07 GG02 GG04 GG09

Claims (15)

[Claims] 1. Content writing means for writing a content, which is electronic data, on a recording medium capable of recording a reproduction record indicating that the written content has been reproduced, and reproduction for reading and storing the reproduction record written on the recording medium. A reproduction-related data totaling system comprising a recording storage means. 2. A content writing means for writing content as electronic data to a recording medium, a reproducing means for reproducing the content stored on the recording medium, and a reproduction recording for writing a reproduction record to the effect that the reproducing means has reproduced on the recording medium. A reproduction-related data totaling system, comprising: a writing unit; and a reproduction record storage unit that reads and stores the reproduction record written on the recording medium, wherein the content writing unit includes: 3. The reproduction-related data totaling system according to claim 1, further comprising a sorter for rearranging the reproduced contents in the order of reproduction frequency when there are a plurality of contents stored in the recording medium. 4. The contents writing means includes a questionnaire output means for outputting contents of a questionnaire, an answer input means for inputting an answer to the questionnaire, and an answer data recording means for recording answer data input to the answer input means. 4. The reproduction-related data totaling system according to claim 1, comprising: 5. A content writing means for writing content as electronic data to a recording medium, a questionnaire output means for outputting questionnaire contents, an answer input means for inputting an answer to the questionnaire, and answer data input to the answer input means. And a response data recording means for recording the data. 6. A recording medium on which content is recorded, in which data for personal authentication of the user is recorded in advance, and the reproduction recording storage means can store the data for personal authentication together with the reproduction recording. 5. A reproduction-related data totaling system according to claim 2, 3 or 4. 7. A personal data of a user is recorded in advance on a recording medium on which the content is recorded, and the personal data of the user can be stored together with the response data in the response data recording means. Reproduction-related data aggregation system described. 8. A communication means capable of connecting to the Internet, a content writing means for recording a content as electronic data obtained by using the communication means on a recording medium, and reproducing the content stored on the recording medium. A set-top box comprising: a reproducing unit; and a reproduction record writing unit that records a reproduction record indicating that the reproduction unit has reproduced the data, wherein the communication unit can transmit the reproduction record recorded by the reproduction recording writing unit. 9. The set-top box according to claim 8, wherein the communication means is capable of transmitting the individual authentication data of the set-top box together with the reproduction and recording. 10. A communication means capable of connecting to the Internet, a content writing means for recording a content as electronic data obtained by using the communication means on a recording medium, and reproducing the content stored on the recording medium. A reproducing unit, a questionnaire output unit for outputting a questionnaire for the already recorded content to the user when the content writing unit records new content on the recording medium, and an answer for the user to input an answer to the questionnaire A set-top box comprising input means, wherein the communication means receives the contents of the questionnaire to the questionnaire output means and can transmit a response to the questionnaire. 11. The set-top box according to claim 10, wherein the communication means can transmit the individual authentication data of the set-top box together with a response to the questionnaire. 12. A data recording means for inputting reproduction recording indicating that the content written on the recording medium has been reproduced, personal authentication data of the user of the recording medium, and sales data of the content, and sales data. A high-sensitivity user extraction system comprising: a coincidence ratio calculating unit for calculating a coincidence ratio with reproduction recording; and a high-sensitivity user extraction unit for extracting a user having an excellent coincidence ratio calculated by the coincidence ratio calculation unit. 13. When rewriting content written on a recording medium to another content, answer data of a questionnaire performed on the content before rewriting, personal authentication data of a user who answered the questionnaire, Data input means for inputting the sales data of the content, matching rate calculating means for calculating a matching rate between the selling data and the answer data, and a high rate for extracting a user excellent in the matching rate calculated by the matching rate calculating means. A high-sensitivity user extraction system comprising a high-sensitivity user extraction unit. 14. A data input procedure for inputting the reproduction record indicating that the content written on the recording medium has been reproduced, the personal authentication data of the user of the recording medium, and the sales data of the content, and the sales data. A high-sensitivity user extraction method comprising: a coincidence rate calculation procedure for calculating a coincidence rate with reproduction / recording; and a high-sensitivity user extraction procedure for extracting users having an excellent coincidence rate calculated by the coincidence rate calculation procedure. 15. When rewriting content written on a recording medium to another content, answer data of a questionnaire performed on the content before rewriting, personal authentication data of a user who answered the questionnaire, A data input procedure for inputting the sales data of the content, a matching rate calculating procedure for calculating a matching rate between the selling data and the answer data, and a high-level process for extracting a user having an excellent matching rate calculated by the matching rate calculating procedure. And a sensitive user extraction procedure.