JP2008182399A - Recording and reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing device for reproducing a received program without skipping a CM part and reproducing the program without interrupting a main program. <P>SOLUTION: A recording and reproducing device comprises: a recording position detection means 14 for detecting a recording start position of a main program to be recorded by being split to a recording medium and a recording start position of the CM part; a reproduction control data generation means 16 for generating reproduction control information so as to control an order of reproduction by which only the main program divided into many parts is continuously reproduced after selecting and reproducing the CM part; and a reproducing means 121 for reproducing which is controlled by the reproduction control information and reproduces programs without skipping the CM parts out of the programs recorded to the recording medium. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  According to the present invention, after a program received by inserting a CM between a main part divided into a plurality of main parts is recorded on a recording medium, the main part received after being divided from the recording medium is continuously recorded. The present invention relates to a recording / reproducing apparatus for reproducing data.

Recently, after recording a program received on a randomly accessible recording medium, a hard disk recording / playback device or DVD (Digital versatile Disc) that plays while accessing a selected program portion of the recorded program Recording / reproducing apparatuses have been introduced into the market.
On the other hand, a CM (commercial message) inserted into the main part of a program is a program portion that is broadcasted by a CM sponsor with a high charge, and is expected to be viewed by the user. On the other hand, the user desires to view the CM received by the main part being interrupted. It is preferable that a recording / playback apparatus capable of playing back a main part that is not interrupted while a CM is viewed by a user is preferable.

Patent Document 1 discloses a CM data reproducing apparatus that can selectively reproduce CM data without reducing the effect of CM advertisement. The apparatus separates and records the program data and the CM data in the digital broadcast data according to the data attached information attached to the digital broadcast data received via the communication satellite, and then receives the CM data in the received program data. A CM data reproducing apparatus is disclosed in which a CM is inserted and reproduced.
JP 2000-165335 A

  However, in the CM data reproducing device disclosed in Patent Document 1, the main part and the CM part of a program broadcast as packetized data to which an identification code by PSI (Program Specific Information) is attached are individually recorded on a recording medium. After recording, the CM part is inserted into the recording position of the main part identified by the additional information and reproduced. For normal broadcast programs, PSI information for attaching an identifier to packetized program data and identifying the main part and the CM part so that only the main part skipping the CM part is not easily recorded. Not to send. That is, the CM signal is received together with the main part, and the program signal is transmitted on the assumption that the CM part is inserted into the main part and viewed. To realize a recording / reproducing apparatus that receives a program that does not have identification information for identifying a main part and a CM part and can reproduce only the main part according to a user's operation in the current commercial broadcasting system I couldn't.

  Therefore, the present invention has been made to solve the above-mentioned problems. The CM part of the received program received by inserting the CM part into the main part is reproduced, and the main part is inserted with a CM. It is an object of the present invention to provide a recording / reproducing apparatus that can continuously reproduce without interruption.

In a first aspect of the present invention, the identification is performed when identification information of a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station and the plurality of main sections and the plurality of CM sections are transmitted. Recording means for recording a program comprising information on a recording medium, reproducing means for reproducing the recorded program, and when the identification information is recorded on the recording medium, the plurality of information based on the identification information While the recording start positions of the main part and the plurality of CM parts are detected, if the identification information is not recorded, a plurality of silent parts existing in the audio signal of the program reproduced by the reproducing means are detected. A time interval is detected, and when the detected time interval is an integral multiple of the predetermined time interval, the recording start position is detected using a program portion having a time interval that is an integral multiple of the predetermined time interval as a CM section. Recording position detection hand And, among the plurality of main sections and the plurality of CM sections in the recorded program, all of the plurality of CM sections are continuously set based on each recording start position information of the CM section detected by the recording position detecting means. Playback control data generating means for generating playback control information for playing back and subsequently playing back the plurality of main parts based on each recording start position information of the main part. A recording / reproducing apparatus is provided.
According to a second aspect of the present invention, a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station, and identification information of the plurality of main sections and the plurality of CM sections are transmitted from the identification information. A recording unit for recording the program to be recorded on the recording medium, a reproducing unit for reproducing the recorded program, and the plurality of main sections based on the identification information when the identification information is recorded on the recording medium. And when the identification information is not recorded, the time interval between the silent portions present in the audio signal of the program reproduced by the reproducing means is detected. Recording position detection for detecting the recording start position using a program portion having a time interval that is an integral multiple of the predetermined time interval as a CM portion when the detected time interval is an integral multiple of the predetermined time interval Means and the CM section CM content detecting means for detecting that the same CM element is included when the same video level change or audio level change is included among the plurality of CM elements included, and a plurality of CM contents in the recorded program When there are a plurality of the same CM elements detected by the CM content detection means, a number less than the detected number of the same CM elements detected by the CM content detection means is reproduced. Then, all the plurality of CM sections are continuously reproduced based on the respective recording start position information of the CM section detected by the recording position detecting means so as not to reproduce the other same CM element, and thereafter Reproduction control data generating means for generating reproduction control information for continuously reproducing the plurality of main parts based on each recording start position information of the main part. To provide a recording and reproducing apparatus according to claim and.
A third invention is the recording / reproducing apparatus according to the first or second invention, wherein the reproduction control information is used when the reproduction of the plurality of CM sections recorded by the recording means is performed first. Is information that allows all of the plurality of CM sections to be continuously performed so that they can be fast-forwarded or skipped when the playback is performed for the second time or later without being fast-forwarded or skipped. A recording / reproducing apparatus is provided.

  According to the present invention, a program including a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station, and identification information when a plurality of main sections and a plurality of CM sections are transmitted. Recording means for recording on a recording medium, reproducing means for reproducing the recorded program, and recording information recorded in a plurality of main sections and a plurality of CM sections based on the identification information when identification information is recorded on the recording medium While the start position is detected, if no identification information is recorded, the time interval between the silent portions present in the audio signal of the program reproduced by the reproducing means is detected, and the detected time interval is a predetermined time. If the interval is an integral multiple of the interval, a recording position detecting means for detecting a recording start position using a program portion having a time interval that is an integral multiple of a predetermined time interval as a CM portion, a plurality of main portions and a plurality of main portions in the recorded program Recording position of the CM part Based on each recording start position information of the CM section detected by the output means, all of the plurality of CM sections are continuously reproduced, and thereafter, the plurality of main sections are continuously reproduced based on each recording start position information of the main section. Since there is a special configuration including reproduction control data generation means for generating reproduction control information for reproduction, the CM portion of the received program received by inserting the CM portion into the main part is not skipped. In addition, it is possible to realize a recording / reproducing apparatus that can continuously reproduce the main part without being interrupted by CM insertion or the like.

A recording / reproducing apparatus according to an embodiment of the present invention will be described below with reference to FIGS.
FIG. 1 is a block diagram illustrating a configuration example of a recording / reproducing apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram (No. 1) showing a detailed configuration example of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 3 is a block diagram (No. 2) showing a detailed configuration example of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 4 is a diagram for explaining an operation example of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 5 is a block diagram (part 1) showing an example of a detailed application configuration of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 6 is a diagram for explaining an application operation example of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 7 is a block diagram (No. 2) showing an example of a detailed application configuration of the recording / reproducing apparatus according to the embodiment of the present invention. FIG. 8 is a block diagram (part 3) showing an example of a detailed application configuration of the recording / reproducing apparatus according to the embodiment of the present invention.

  The recording / reproducing apparatus reproduces the CM part of the received program received by inserting the CM part into the main part without skipping, and continuously reproduces the main part without being interrupted by CM insertion or the like. The purpose of realizing a device capable of performing the identification is to identify a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station, and identification information of a plurality of main sections and a plurality of CM sections is transmitted. Recording means for recording a program comprising information on a recording medium, reproducing means for reproducing the recorded program, and a plurality of main sections and a plurality based on the identification information when identification information is recorded on the recording medium While the recording start position is detected with the CM part, the time interval between the silent parts existing in the audio signal of the program reproduced by the reproducing means is detected when the identification information is not recorded. Time interval is a predetermined time interval In the case of an integral multiple, a recording position detecting means for detecting a recording start position using a program portion having a time interval that is an integral multiple of a predetermined time interval as a CM portion, a plurality of main sections and a plurality of CMs in the recorded program All of the plurality of CM sections are continuously reproduced based on each recording start position information of the CM section detected by the recording position detecting means, and then a plurality of sections are recorded based on each recording start position information of the main part. This is realized by including reproduction control data generating means for generating reproduction control information for continuously reproducing the main part.

The configuration of the recording / reproducing apparatus will be described.
The recording / reproducing apparatus 1 shown in FIG. 1 includes a tuner 11 that demodulates a signal received by an antenna, a data recording unit 12, a decoder 13 that decodes an encoded signal, and whether a program signal is a main part or a CM part. The program information detection unit 14 for detecting the program information, the chapter generation unit 15 for generating a chapter attached to the head of the detected program information, the reproduction control data generation unit 16 for generating data for controlling the reproduction order of the recording signals, and the recording / reproduction It is comprised from the control part 19 which performs operation | movement control of an apparatus. The data recording unit 12 includes a program data recording / reproducing unit 121 that records data of a main part and a CM unit of an encoded program, and a control data recording unit 122 that records reproduction control data.
The playback control data generation unit 16 that is a main part of the recording / playback apparatus 1 shown in FIG. 2 includes a scene information generator 161, a CM scene detector 162, and a playback order data generator 163.
The control unit 19 which is a main part of the recording / reproducing apparatus 1 shown in FIG. 3 includes a reproduction order data acquisition unit 191, a special reproduction area manager 192, an operation command detector 194, a special reproduction command detector 195, and a special reproduction position manager. 196, a standard reproduction command detector 197, and a reproduction command issuer 198.
The reproduction control data generating unit 16a, which is a main part of the application example of the recording / reproducing apparatus 1 shown in FIG. 5, is compared with the CMID (commercial message identification) generator 164 and the CMID compared to the reproduction control data generating unit 16 shown in FIG. Many containers 165 are provided.
As compared with the recording / reproducing apparatus 1 shown in FIG. 1, the recording / reproducing apparatus 1a shown in FIG. 7 has a control unit 19a instead of the control unit 19, a data recording unit 12a instead of the data recording unit 12, and a program. Instead of the data recording / reproducing device 121, a program data recording / reproducing device 121a is provided.
The control unit 19a, which is the main part of the application example of the recording / reproducing apparatus 1 shown in FIG. 8, has a larger number of reproduction position detectors 193 than the control unit 19 shown in FIG. Instead of 192, a special playback area manager 192a is provided.

The operation of the recording / reproducing apparatus will be described.
First, the broadcast signal received by the antenna is demodulated by the tuner 11 to obtain a received signal. When the broadcast signal is a digital signal, the received signal is, for example, a TS (Transport Stream) signal standardized by a moving picture experts group (MPEG) system standard. The program data recording / reproducing device 121 of the data recording unit 12 records a TS signal. The TS signal is composed of a moving image packet, an audio packet, and an auxiliary information packet, and these packet signals are recorded on a recording medium (not shown). The program information detection unit 14 detects PSI (Program Specific Information) included in the auxiliary information packet. If the PSI contains information about whether the program signal received in the video packet and audio packet is the main part or the commercial message (CM) part, the signal being recorded is detected as the main part or the CM part To do.
The chapter generation unit 15 generates a chapter signal for identifying the first part of the program signal detected as the CM unit. The reproduction control data generation unit 16 first reproduces the CM signal based on the chapter signal generated by the chapter generation unit 15, and then reproduces the main part signal. The control data may be referred to as a playlist.). The control data recorder 122 of the data recording unit 12 records the generated playlist.

For example, when a user operates a remote control key (not shown) and issues a playback command for a program recorded by the program data recording / playback device 121, the control unit 19 relates to the playback operation recorded in the control data recording device 122. Get a playlist of programs. Next, the control unit 19 reproduces only the CM part inserted in the main part of the program. After all CM parts have been played, the main part of the program is played back continuously. That is, the main part that is not interrupted after all CMs broadcast during the program are reproduced. A program signal that is compression-encoded such as MPEG-2 video obtained by reproduction is decoded by the decoder 13. The moving image signal and audio signal obtained by decoding are supplied to a monitor TV (not shown) and displayed and pronounced. The main part received by the user after being interrupted by the CM part and CM insertion is displayed and viewed without interruption.
Here, the control unit 19 has a function of prohibiting special reproduction control during the CM unit reproduction period. Even if a button operation such as fast-forward playback or skip playback is performed during CM playback, the CM section is played back at the standard speed. Special playback in the main part is performed according to the button operation.

  Here, even if the broadcast is a digital broadcast, if the received program does not include identification information for identifying whether the program is a main part or a CM part, the program information detection part 14 receives it. It is necessary to detect whether the recorded signal is the main part or the CM part. The same applies to the case where the broadcast signal is analog. For example, when information identifying whether the program is a main part or a CM part is not multiplexed in a specific scanning line period, the program information detection unit 14 receives the received signal. It is necessary to detect whether it is a main part or a CM part. As a CM section identification method when the program identification information is not transmitted, for example, there is a method of identifying using a sound signal attached to a moving image signal. The program information detection unit 14 identifies whether the recorded sound mode is monaural sound, multiplexed sound, or stereo sound. When the audio mode is received as a stereo audio mode that is changed by an integral multiple of 15 seconds, for example, the portion of the stereo audio mode is detected as the CM unit. Further, when the main part is received in the stereo sound mode, a part in which a silent part existing for several hundred milliseconds, for example, is repeatedly detected every integer multiple of 15 seconds is detected as a CM part. Further, a method for determining the main part and the CM part by detecting the difference between the main part and the CM part of the data format using character data and graphic data transmitted accompanying the moving image signal. There is also.

  Further, it has been described that the moving image and audio signals recorded in the program data recording / reproducing device 121 use signals encoded by, for example, the MPEG system. In the case of analog broadcast reception, the video signal and audio signal obtained by reception are encoded after being converted into digital signals, and the encoded signal obtained by encoding is recorded on a recording medium (not shown). A general technique is used for digital recording on a medium.

Next, this will be described in detail.
The reproduction control data generation unit 16 will be further described with reference to FIG.
The scene information generator 161 is attached to the head part of the divided main part and the CM part, which is detected by the program information detection unit 14 and indicated to be assigned a chapter flag by the chapter generation unit 15. Chapter flag time information is input. Based on the time information of the chapter flag, the scene information generator 161 recognizes whether the program part starting from the chapter is a divided main part or a CM part. The reproduction order data generator 163 first reproduces all the CMs detected by the CM scene detector 162, and then generates a playlist for sequentially reproducing the divided main parts. The playlist is supplied to the control data recorder 122 and recorded there.

The control unit 19 will be described with reference to FIG.
First, the reproduction order data acquisition unit 191 acquires a playlist recorded in the control data recording unit 122. The special reproduction area manager 192 performs area management when reproducing the program recorded in the program data recording / reproducing apparatus 121. That is, with reference to the playlist acquired by the playback order data acquisition unit 191, area management information for prohibiting special playback such as fast-forwarding and skipping is generated and held when playing back.

  The operation command detector 194 acquires operation information when an operation button (not shown) is operated by the user. The standard reproduction command detector 197 transmits the detected operation information to the reproduction command issuer 198 when the button operation is an operation related to normal reproduction such as reproduction, slow, and pause. The playback command issuer 198 issues a command related to playback of the recorded program to the program data recording / playback device 121.

  The special reproduction command detector 195 detects the command when the operation detected by the operation command detector 194 is a special reproduction command. The special reproduction position manager 196 refers to the information of the special reproduction area manager 192, detects whether the area where special reproduction is performed is the main part area or the CM part area, and the reproduction area is the CM area. If it is a part, a special playback control command such as fast forward or skip is replaced with a standard playback command and output. The playback command issuer 198 issues a standard playback command to the program data recording / playback device 121. The special reproduction of the main part is performed by the operation, but the CM part is reproduced at the standard speed.

With reference to FIG. 4, rearrangement of program parts for first reproducing the CM part inserted between the divided main parts will be described.
In FIG. 4A, the main part of the received program is divided into a main part 1, a main part 2, a main part 3, and a main part 4, and CM1 is received before the main part 1, and the main part 1 is received. CM2 is received between the main part 2 and CM3 and CM4 are received in the same manner. In the chapter generation unit 15, chapters for chapter reproduction are attached to the first part of CM1, CM2, CM3, and CM4. FIG. 5B shows the playback order defined by the playlist created by the playback control data generation unit 16. This is a playlist in which CM1 to CM4 are reproduced first, and then main part 1 to main part 4 are reproduced. Here, the chapter is attached to the beginning of each CM1 to CM4. The special reproduction position manager 196 is operated so as to reproduce only the beginning of CM1 in the case of the first reproduction of the recorded program, and to prohibit the cue reproduction starting from CM2 to CM4.
≪Example of playback control data generator≫

An application example of the reproduction control data generation unit will be described with reference to FIGS.
Conventionally, a CM having the same content is continuously received up to about twice. Generally, repeated playback of about twice is not viewed with such a sense of incongruity. However, when the same CM is viewed more than three times, it is considered that an unfavorable impression is given. When CM parts divided and arranged in the main part of a program are reproduced together, CMs having the same contents may be reproduced continuously a plurality of times. It is necessary to provide a mechanism for determining the number of continuous reproductions of the same content CM by a sponsor who provides the CM so that the effect caused by the CM presentation is not reduced.

  The scene information generator 161 and the CM scene detector 162 have a function of detecting that a CM is repeatedly received when the received CM includes content having the same content or very similar content. The scene information generator 161 obtains change information of the luminance level of the CM section video signal, for example. As information for specifying a CM, transition information such as extraction of a contour of a subject included in a video signal, level change of an accompanying audio signal, or spectrum change of an audio signal is acquired as scene information. The CM scene detector 162 compares the scene information for each received CM and detects whether there is scene information with a similar pattern. When the same or very similar scene information is detected, it is detected as CMs having the same contents.

  The reproduction control data generation unit shown in FIG. 5 omits the reproduction of the same content received after the second time when the same content CM is received a plurality of times. The scene information generator 161 is the same as the scene information generator 161 shown in FIG. 2, and generates scene information for each received CM. The CMID generator 164 assigns a CMID that is an identification code for each CM having different scene information. The same CMID is attached to the same or very similar scene information. When a CM having the same CMID is detected, the CMID comparator 165 outputs a comparison signal for reproducing only one CM to the reproduction order data generator 163.

6A shows that CMs CMa, CMb, and CMc are received during the period CM1, and CMs CMd, CMd, and CMe are received during the period CM2. The CMID generator 164 attaches identification codes ID1 to ID5 to CMa to CMe. The CMa received at the beginning of CM2 is assigned the same ID1 as the CMa received at the beginning of CM1.
FIG. 6B shows a playlist generated by the playback order data generator 163. CMa to CMc are reproduced during the CM1 period, and CMd and CMe are reproduced during the CM2 period. By attaching a CMID to each CM, it is possible to easily create a playlist in which the same CM is reproduced only once. Note that the setting of the number of playbacks for the same CM is performed only when the intention of the CM sponsor is transmitted as a playback number control signal and a control signal that the reception side may adjust the number of playbacks is received. The number of reproductions of overlapping CMs may be reduced.
≪Example of playback control data generator≫

An application example of the control unit will be described with reference to FIGS.
In FIG. 7, the program data recording / reproducing device 121a is connected to supply reproduction position information of a recording medium (not shown) to the control unit 19a. That is, the received CM section and main part are sequentially recorded on the recording medium as shown in FIG. As shown in FIG. 4B, the recording medium is reproduced while only the main part is accessed after only the CM part is accessed and reproduced. The control unit 19a is supplied with playback position information that is accessed and played back.

  The playback position detector 193 of the control unit 19a shown in FIG. 8 generates playback position information as playback history information. The reproduction history information is generated for each of CMa to CMe shown in FIG. The special reproduction area manager 192a does not restrict special reproduction such as fast-forwarding and skipping for the CM for which reproduction history information is generated. The CM for which the reproduction history information is generated by the reproduction operation is reproduced without limiting the reproduction function.

  As described above, according to the recording / reproducing apparatus shown in the present embodiment, the recording position detecting means (14) for detecting the recording start position of the main part recorded in the recording medium, the next main part, and the inserted CM. ) And the playback that generates playback control information for continuously playing the main part and the next main part after playing back all of the inserted CMs based on the recording start position detected by the recording position detection means. Controlled by the playback control information generated by the control data generating means (16) and the playback control data generating means, the high-speed playback command of CM or the skip playback command of CM is invalidated and the program signal recorded on the recording medium is played back Playback means (19, 121) to be played, so that the CM part of the received program received by inserting the CM part into the main part is reproduced without skipping, and the main part is interrupted by CM insertion or the like And no, it is possible to realize a recording and reproducing apparatus which enables be regenerated continuously.

It is a block diagram which shows the structural example of the recording / reproducing apparatus which concerns on implementation of this invention. It is a block diagram (the 1) which shows the example of a detailed structure of the recording / reproducing apparatus based on implementation of this invention. It is a block diagram (the 2) which shows the detailed structural example of the recording / reproducing apparatus based on implementation of this invention. It is a figure for demonstrating the operation example of the recording / reproducing apparatus which concerns on implementation of this invention. It is a block diagram (the 1) which shows the detailed application structural example of the recording / reproducing apparatus based on implementation of this invention. It is a figure for demonstrating the application operation example of the recording / reproducing apparatus which concerns on implementation of this invention. It is a block diagram (the 2) which shows the example of a detailed application structure of the recording / reproducing apparatus based on implementation of this invention. It is a block diagram (the 3) which shows the example of a detailed application structure of the recording / reproducing apparatus based on implementation of this invention.

Explanation of symbols

1, 1a Recording / reproducing apparatus 11 Tuner 12, 12a Data recording unit 13 Decoder 14 Program information detecting unit 15 Chapter generating unit 16, 16a Reproduction control data generating unit 19, 19a Control unit 121, 121a Program data recording / reproducing unit 122 Control data recording 161 Scene information generator 162 CM scene detector 163 Playback order data generator 164 CMID generator 165 CMID comparator 191 Playback order data acquisition unit 192, 192a Special playback area manager 193 Playback position detector 194 Operation command detector 195 Special playback command detector 196 Special playback position manager 197 Standard playback command detector 198 Playback command issuer

Claims (3)

When identification information of a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station and the plurality of main sections and the plurality of CM sections are transmitted, a program comprising the identification information is recorded on a recording medium. Recording means for recording;
Playback means for playing back the recorded program;
When the identification information is recorded on the recording medium, the recording start positions of the plurality of main sections and the plurality of CM sections are detected based on the identification information, but the identification information is not recorded. In this case, a time interval between silent portions present in a plurality of audio signals of the program reproduced by the reproduction means is detected, and when the detected time interval is an integral multiple of a predetermined time interval, the predetermined interval is detected. A recording position detecting means for detecting the recording start position with a program part having a time interval that is an integral multiple of the time interval as a CM part;
Of the plurality of main sections and the plurality of CM sections in the recorded program, all of the plurality of CM sections are continuously reproduced based on each recording start position information of the CM section detected by the recording position detecting means. Then, reproduction control data generating means for generating reproduction control information for continuously reproducing the plurality of main parts based on each recording start position information of the main part,
A recording / reproducing apparatus comprising: When identification information of a plurality of main sections and a plurality of CM sections transmitted from a broadcasting station and the plurality of main sections and the plurality of CM sections are transmitted, a program comprising the identification information is recorded on a recording medium. Recording means for recording;
Playback means for playing back the recorded program;
When the identification information is recorded on the recording medium, the recording start positions of the plurality of main sections and the plurality of CM sections are detected based on the identification information, but the identification information is not recorded. In this case, a time interval between silent portions present in a plurality of audio signals of the program reproduced by the reproduction means is detected, and when the detected time interval is an integral multiple of a predetermined time interval, the predetermined interval is detected. A recording position detecting means for detecting the recording start position with a program part having a time interval that is an integral multiple of the time interval as a CM part;
CM content detection means for detecting that the same CM element is included when a plurality of CM elements included in the CM unit include the same video level change or audio level change;
If there are a plurality of the same CM elements detected by the CM content detecting means among a plurality of CM sections in the recorded program, the detected CM contents are detected from the same CM elements detected by the CM content detecting means. All of the plurality of CM sections are continuously played back based on the respective recording start position information of the CM section detected by the recording position detecting means without reproducing the same number of other CM elements. Reproduction control data generating means for generating reproduction control information for causing the plurality of main parts to be continuously reproduced based on each recording start position information of the main part,
A recording / reproducing apparatus comprising: The recording / reproducing apparatus according to claim 1 or 2,
The playback control information allows the playback of the plurality of CM sections recorded by the recording means to be performed continuously without fast-forwarding or skipping, and to perform the playback from the second time onward. In the case, the recording / reproducing apparatus is characterized in that the information is continuously performed so that all of the plurality of CM units can be fast-forwarded or skipped.

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