JP2008171523A - Data reproducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data reproducing device preventing a user from wating for a long time even when the reproduction instruction of non-continuous content data, such as a program search or fast-fowarding, is received without consuming a memory region. <P>SOLUTION: The data reproducing device includes; a storage means in which one or a plurality of the content data are stored; a first continuous reproduction means which successively reads out the content data from the storage means, and continuously reproduces the data; an input means in which the user inputs the non-continuous reproduction instruction to non-continuously reproduce the content data when the content data is continuously reproduced by the first continuous reproduction means; a read means to successively read the content data based on the non-continuous reproduction instruction from the storage means and to store the data into a buffer region and gradually increases the read content data; and a second continuous reproduction means which continuously performs reproduction based on the content data stored into the buffer region. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a data reproducing apparatus, and more particularly to a data reproducing apparatus capable of quickly performing non-continuous reproduction such as cueing and fast-forwarding.

  Data reproduction apparatuses capable of reproducing content data such as music data and moving image data recorded as digital data are widely used. In such a data reproducing apparatus, for example, while a user is reproducing music data, there is a case where it is desired to stop the song being reproduced halfway and skip to the next song. In order to realize such an operation, the data reproducing apparatus is equipped with a so-called cueing function.

  In some cases, the user may want to shorten the reproduction time by fast-forwarding the music being reproduced. In order to realize such an operation, the data reproduction apparatus has a function called fast-forward. In this fast-forwarding, music data of a song being played is played back at intervals of a predetermined time interval to shorten the playing time, thereby realizing fast-forwarding of the song being played.

  However, in the conventional data reproducing apparatus, the content data stored in the hard disk drive is divided into predetermined fixed sizes and read, so that when the cueing is performed, the reproduction of the next song starts. The user has a relatively long waiting time. In addition, when fast-forwarding, a relatively long content data reading time occurs because the data is reproduced in a predetermined time interval. In other words, in the case of cueing or fast-forwarding, data reading is started from the state where there is no content data in the buffer area where the content data is read and stored. There is a problem that a waiting time occurs for the user during this time.

In order to solve such a problem, the data reproduction apparatus disclosed in Japanese Patent Application Laid-Open No. 2003-132629 (Patent Document 1) collects music data of only the head portion of each song and creates a data file of only the head portion. Is generated and stored in the hard disk drive in advance. Then, the contents of the data file of only the first part are read into the buffer area in advance, and when the user cues, the data file of only the first part in the buffer is accessed to play the next song. By starting, quick cueing is realized. However, with such a method, it is necessary to secure an area for storing data obtained by collecting only the head portion of a song in a hard disk drive or a buffer area, resulting in wasted storage area.
JP 2003-132629 A

  Accordingly, the present invention has been made in view of the above-described problems, and even when a reproduction instruction for discontinuous content data such as cueing or fast-forwarding is received without consuming a wasteful storage area, the user waits for a long time. An object of the present invention is to provide a data reproducing apparatus that avoids the occurrence of time.

In order to solve the above problems, a data reproducing apparatus according to the present invention provides
Storage means for storing one or more content data;
First continuous reproduction means for sequentially reading out content data from the storage means and continuously reproducing the content data;
Input means for allowing a user to input a discontinuous playback instruction that is a playback instruction for discontinuous content data when content data is being played back continuously by the first continuous playback means;
When the discontinuous reproduction instruction is input from the input unit, the content data based on the discontinuous reproduction instruction is sequentially read from the storage unit and stored in the buffer area, and the size of the read content data Reading means for gradually increasing the length;
Second continuous playback means for continuously playing based on the content data stored in the buffer area;
It is characterized by providing.

  In this case, the size of the content data when the reading unit sequentially reads the content data from the storage unit may be determined in advance.

  Alternatively, the size of the content data when the reading unit sequentially reads the content data from the storage unit is determined in advance until the second time of reading the content data from the storage unit, but the third and subsequent times are calculated. You may make it calculate.

  In this case, the size of reading the content data for the third time is determined based on the time required to decode the content data read for the first time and the size of the content data read for the second time. The time required for decoding for reproducing the content data may be estimated and determined based on the size of the content data that can be read within the estimated time.

  In this case, the size of reading the content data for the third time is set so that the estimated time for the third time is within the time for decoding to reproduce the content data read for the second time in consideration of the margin. You may set so that reading of the content data to be read may be completed.

  The content data may be music data, and the non-continuous reproduction instruction may be a cue instruction that is an instruction to skip the currently reproduced music and start reproduction from the beginning of the next music.

The control method of the data reproducing apparatus according to the present invention includes:
Sequentially reading out the content data from the storage means in which one or a plurality of content data is stored, and continuously reproducing the content data;
A step in which a user inputs a discontinuous reproduction instruction that is an instruction to reproduce discontinuous content data when the content data is being reproduced continuously;
When the non-continuous reproduction instruction is input, the content data based on the non-continuous reproduction instruction is sequentially read from the storage means and stored in the buffer area, and the size of the read content data is gradually increased; and
Continuously playing based on the content data stored in the buffer area;
It is characterized by providing.

The program according to the present invention is:
Sequentially reading out the content data from the storage means in which one or a plurality of content data is stored, and continuously reproducing the content data;
A step in which a user inputs a discontinuous reproduction instruction that is an instruction to reproduce discontinuous content data when the content data is being reproduced continuously;
When the non-continuous reproduction instruction is input, the content data based on the non-continuous reproduction instruction is sequentially read from the storage means and stored in the buffer area, and the size of the read content data is gradually increased; and
Continuously playing based on the content data stored in the buffer area;
Is executed by a data reproducing apparatus.

BEST MODE FOR CARRYING OUT THE INVENTION

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the embodiments described below do not limit the technical scope of the present invention.

  FIG. 1 is a block diagram for explaining an example of the internal configuration of the data reproducing apparatus 10 according to the present embodiment. The data reproducing apparatus 10 shown in FIG. 1 can be constituted by, for example, a portable information processing terminal, a notebook computer, a desktop computer, a mobile phone, or the like.

  As shown in FIG. 1, the data reproducing apparatus 10 includes a CPU (Central Processing Unit) 20, a RAM (Random Access Memory) 22, a ROM (Read Only Memory) 24, a user interface 26, a display unit 28, An audio output unit 30 is provided, which are connected to each other via an internal bus 32. The data reproducing apparatus 10 further includes a hard disk drive 40 and a memory control unit 42, and the hard disk drive 40 is connected to the CPU 20 and the RAM 22 via the memory control unit 42.

  The CPU 20 is a unit for performing various controls of the data reproducing apparatus 10. Specifically, the CPU 20 performs overall control of the data reproducing device 10 by executing various programs stored in the ROM 24 or the hard disk drive 40. The RAM 22 temporarily stores various programs and data necessary for the CPU 20 to execute various processes. In particular, in the present embodiment, data necessary for reproducing music data stored in the hard disk drive 40 is temporarily stored in a buffer area formed in the RAM 22.

  The user interface 26 is an interface for inputting various instructions when the user operates the data reproducing apparatus 10. The user interface 26 can be configured with, for example, one or a plurality of buttons, and can be configured integrally with the display unit 28 when the display unit 28 is configured with a touch panel.

  The display unit 26 can be configured by, for example, a small monochrome liquid crystal display or a monochrome liquid crystal display device. When the data reproducing apparatus 10 can reproduce still image data and moving image data in addition to music data, the display unit 26 can be configured by a color liquid crystal display. The audio output unit 30 includes, for example, a small speaker or headphone output, and outputs audio such as music and voice based on the control of the CPU 20. In particular, in the present embodiment, music data acquired from the hard disk drive 40 is reproduced and output from the audio output unit 30.

  The hard disk drive 40 stores a data file of digital music data for each song. The number of pieces of music stored in the hard disk drive 40 is arbitrary, and one or a plurality of music data is stored. The data file stored in the hard disk drive 40 is read out and stored in the RAM 22 via the memory control unit 42 based on an instruction from the CPU 20. That is, when the CPU 20 instructs the memory control unit 42, the music data stored in the hard disk drive 40 is read and stored in a predetermined buffer area of the RAM 22.

  Next, based on FIG. 2 and FIG. 3, the outline of the cueing process when the user inputs an instruction to cue the next song during the reproduction of a certain song in the data reproducing apparatus 10 according to the present embodiment will be described. To do. FIG. 2 is a diagram showing buffer areas A, B, and C formed in the RAM 22, and FIG. 3 is a diagram showing a flow of decoding processing, buffer processing, and file system in cueing processing.

  The buffer areas A, B, and C shown in FIG. 2 may be secured as continuous areas in the RAM 22, or may be secured as discrete areas for each buffer area. In this embodiment, for example, the buffer area A is fixed at a size of 10 Kbytes, and the buffer area B is fixed at a size of 100 Kbytes, but the size of the buffer area C is variable. In the example shown, the case of 1 Mbyte is shown. A method for calculating the size of the buffer area C will be described later.

  In the present embodiment, music data is stored in the hard disk drive 40. The music data constitutes one data file for each song, and one data file includes a header including information such as a song name, artist name, and playback time, and information of music to be played back. Music playback data.

  When the user inputs a cueing instruction to the data reproducing apparatus 10 using the user interface 26, as shown in FIG. 3, the decoding process reads out the next song data in order to decode the next song. Instructs buffer processing. In response to this instruction, the buffer process instructs the file system to read out 10 Kbytes of music data of the next song. Upon receiving this instruction, the file system accesses the hard disk drive 40, reads out 10 Kbytes of music data from the head of the designated song, and stores it in the buffer area A. As a result, the buffer area A is filled with music data.

  When the storage of 10 Kbytes of music data in the buffer area A is completed, the file system notifies the buffer process of the completion of reading of 10 Kbytes. In response, the buffer process notifies the decoding process of the completion of reading.

  In the decoding process, when the reading of the music data for 10 Kbytes is completed, the music data is acquired from the buffer area A and the decoding process is performed. Specifically, first, a header analysis process is performed on the header included in the music data, and after the header analysis process is completed, the music reproduction data is decoded to reproduce the music data.

  While the decoding process is decoding the music data stored in the buffer area A, the buffer process instructs the file system to read 100 Kbytes of the music data that has been read out. In response to this, the file system accesses the hard disk drive 40, reads the continuation of the music data for 100 Kbytes, and stores it in the buffer area B. The storage of the music data in the buffer area B is set so as to end while the decoding based on the music data stored in the buffer area A is being performed. That is, the time required to read the music data for the second time and store it in the buffer area B is shorter than the time required to decode the music data read for the first time and stored in the buffer area A. Set to.

  When the decoding process finishes decoding the music data stored in the buffer area A, the decoding of the music data stored in the buffer area B is started. At this time point, since the music data is already stored in the buffer area B, the decoding process can be continued without waiting for the music data to be read by the buffer process.

  While the decoding process is decoding the music data stored in the buffer area B, the buffer process and the file system read the continuation data of the music data stored in the buffer area B from the hard disk drive 40, and the buffer area Store in C. For this reason, when the decoding of the music data stored in the buffer area B is completed, the subsequent music data has already been stored in the buffer area C, and there is no waiting time in the decoding process. Music data can be decoded.

  By repeating such processing, the waiting time generated for the user who has instructed cueing can be reduced to the time required to store the music data in the first buffer area A. Here, since the buffer area A is as small as 10 Kbytes, the time required to read out the music data is relatively short, and the waiting time of the user is similarly shortened.

  Next, the decoding process and the buffer process described above will be described in detail with reference to FIGS. Note that the file system processing is the same as that of a file management system for a general hard disk drive, and therefore detailed description thereof is omitted here.

  FIG. 4 is a flowchart illustrating the contents of the decoding process described above. The decoding process shown in FIG. 4 is a process realized by the CPU 20 reading and executing a decoding process program stored in the ROM 24 or the hard disk drive 40. The decoding process is started when the user operates the user interface 26 to instruct the data reproducing apparatus 10 to cue the next song during playback of a certain song.

  FIG. 5 is a flowchart illustrating the contents of the buffer processing described above. The buffer processing shown in FIG. 5 is realized by the CPU 20 reading and executing a buffer processing program stored in the ROM 24 or the hard disk drive 40. This buffer process is a process that is activated in response to an activation instruction from the decoding process.

  As shown in FIG. 4, in the decoding process of the data reproducing apparatus 10 according to the present embodiment, first, the decoding process instructs the buffer process to read the music data of the song next to the currently reproduced song. (Step S100). Thereby, the buffer process shown in FIG. 5 is started.

  Next, as shown in FIG. 4, the data reproducing apparatus 10 determines whether or not necessary music data is stored in the RAM 22 (step S110). Specifically, it is determined whether or not necessary music data is stored in the buffer area of the RAM 22. In the present embodiment, since the music data is stored in the buffer area A at the start of the decoding process, it is determined whether or not the necessary music data is stored in the buffer area A.

  If the necessary music data is not stored in the RAM 22 (step S110: NO), the data reproducing apparatus 10 repeats the determination in step S110 and waits until the necessary music data is stored in the RAM 22.

  On the other hand, when necessary music data is stored in the RAM 22 (step S110: YES), the data reproducing apparatus 10 acquires necessary music data from the RAM 22 and performs header analysis (step S120). That is, the data reproduction apparatus 10 analyzes the header information of the music data, and acquires information such as the song name, artist name, and reproduction time of the song to be reproduced. These acquired information can also be displayed on the display unit 28.

  Next, the data reproducing device 10 determines whether or not the header analysis has been completed (step S130). For example, based on the music data stored in the buffer area A, it is determined whether the header analysis has been completed. If the header analysis has not ended (step S130: NO), the process returns to step S110 to determine whether or not the music data necessary for the buffer area B already exists, and the processing from step S110 is repeated.

  On the other hand, when the header analysis is completed (step S130: YES), that is, when the header analysis is completed based on, for example, music data stored in the buffer area A, the data reproduction device 10 performs the music reproduction. It is determined whether or not the music data necessary for decoding is stored in the RAM 22 (step S140).

  If the necessary music data is not stored in the RAM 22 (step S140: NO), the data reproducing apparatus 10 repeats the determination in step S140 and waits until the necessary music data is stored in the RAM 22. As described above, normally, the music data subsequent to the buffer area B has been stored while the music data stored in the buffer area A is being decoded. There is no waiting situation.

  When the music data necessary for the RAM 22 is stored (step S140: YES), the data reproducing apparatus 10 performs a decoding process for performing the music reproduction based on the music data stored in the RAM 22 ( Step S150). For example, when the above-described header analysis is completed with only music data stored in the buffer area A, music reproduction data for music reproduction is also stored in the buffer area A. Therefore, the data reproduction device 10 acquires music reproduction data of music data from the buffer area A and performs decoding for music reproduction.

  Subsequently, the data reproducing device 10 determines whether or not the decoding process for reproducing music for one song has been completed with the data in the buffer area from which the music data has been acquired (step S160). For example, when music data is acquired from the buffer area A and decoding processing for music playback is performed, whether the decoding processing up to the end of the song is completed by the music data in the buffer area A Judge whether.

  If the decoding process for music reproduction for one song has not been completed (step S150: NO), the process returns to the above-described step S140 to determine whether or not the necessary music data is stored in the next buffer area. Then, the same processing as described above is repeated. For example, when the decoding process for music reproduction using the music data stored in the buffer area A is completed, it is determined whether or not the necessary music data is stored in the next buffer area B. As described above, normally, the music data subsequent to the buffer area B has been stored while the music data stored in the buffer area A is being decoded. There is no waiting situation. Further, normally, while the music data stored in the buffer area B is being decoded, the music data subsequent to the buffer area C has been stored. Does not occur.

  On the other hand, when the decoding process for music reproduction for one song is completed (step S150: YES), the decoding process shown in FIG. 4 is ended.

  When the decoding process of FIG. 4 is completed, a normal decoding process is performed. That is, in the case where a plurality of songs are successively reproduced in succession, if there is a next song, the music data of the next song is read from the hard disk drive 40 to the buffer area of the RAM 22 to perform header analysis processing or music reproduction. Perform the decoding process for Normally, the music data of the next song is read from the hard disk drive 40 while the music of the previous song is being played or between songs. For this reason, the situation where a user waits until the music reproduction of the next music starts does not occur.

  Next, buffer processing according to the present embodiment will be described in detail with reference to FIG. As shown in FIG. 5, in the buffer processing according to the present embodiment, the data reproduction device 10 reads the designated music data from the hard disk drive 40 for the 10 Kbytes from the beginning and stores it in the buffer area A of the RAM 22. (Step S200). When the reading of 10 Kbytes is completed, the buffer process sets a reading end flag for the buffer area A to notify the decoding process that reading of the music data in the buffer area A has ended.

  Next, the data reproduction device 10 reads 100 Kbytes of the designated music data from the hard disk drive 40 and stores it in the buffer area B of the RAM 22 (step S210). When the reading of 100 Kbytes is completed, the buffer process sets a reading end flag for the buffer area B to notify the decoding process that the reading of the music data in the buffer area B has ended.

  Next, the data reproducing apparatus 10 calculates the read amount of the next music data, and determines the size of the buffer area C (step S220). The amount of music data read is not limited as long as the decoding process can be completed while the music data in the buffer area B is being decoded, and various calculation methods can be considered. In this embodiment, for example, the following calculation is performed: read size = (data size acquired last time) / (processing size per unit time of the CPU 20) × (data transfer speed of the hard disk drive 40) × (margin coefficient). .

  In the present embodiment, the data size acquired last time is 100 Kbytes in the buffer area B. The processing size per unit time of the CPU 20 is calculated based on the time required for decoding the music data in the buffer area A. For example, if it takes 10 milliseconds to decode the music data in the 10 Kbyte buffer area A, the processing size per second is 100 Kbytes.

  The data transfer speed of the hard disk drive 40 is a predetermined fixed value, for example, 10 Mbytes / second. The margin coefficient is a coefficient that secures a margin in order to avoid the end of the decoding process of the music data stored in the buffer area B rather than the reading of the music data. It is. Substituting these numerical values results in 100 Kbytes / 100 Kbytes × 10 Mbytes × 0.9 = 9 Mbytes. Therefore, the size of the data to be read next is 9 Mbytes, and the size of the buffer area C is 9 Mbytes.

  Next, the data reproducing apparatus 10 reads out the continuation of the music data from the hard disk drive 40 by the size calculated in step S220 and stores it in the buffer area of the RAM 22 (step S230). For example, when the size of the buffer area C and the amount of data to be read are calculated in step S220, the music data is read out with the calculated size and stored in the buffer area C. When this reading is completed, the buffer process sets a reading end flag for the buffer area C to notify the decoding process that reading of the music data in the buffer area C has ended.

  Next, the data reproducing apparatus 10 determines whether or not the music data of the song has been completed with the music data read in step S230 (step S240). That is, it is determined whether or not the data has been read to the end of the music data being reproduced.

  When the music data of the read music is not finished to the end (step S240: NO), the process returns to the above-described step S220 and repeats from step S220. That is, the read amount of music data to be read is calculated, and the continuation of the music data is read. The amount of music data to be read is larger than the previously calculated amount, and the size of the buffer area gradually increases.

  However, since the size of the buffer area C has already been determined in step S220, the subsequent music data is read in the same size as the buffer area C without being recalculated again in step S220, and the buffer area D The buffer area E may be stored sequentially.

  On the other hand, when the music data of the read music has been completed to the end (step S240: YES), the buffer processing at the time of cueing shown in FIG.

  As described above, according to the data reproducing apparatus 10 according to the present embodiment, when the user skips the music being reproduced and instructs the data reproducing apparatus 10 to cue the next music, the data reproducing apparatus 10 The music data of the next song is read from the beginning. At this time, the music data of 10 Kbytes is first read from the hard disk drive 40 and stored in the buffer area A, and then the music data is gradually increased in size. It was decided to read the data. For this reason, the time required to read the music data for the first time becomes short enough, and after waiting for the cue, the user can wait for the next song to start playing. Can be shortened. In other words, the music data of a small size is first read into the buffer area A and the decoding is started, so that the timing for starting the decoding of the music data is advanced as compared with the case where the decoding is started after the music data of a large size is read. As a result, the waiting time of the user until the start of the reproduction of the next song can be shortened.

  In addition, for the buffer area C and later, since the size of data to be read is determined by calculation according to the actual time required for the decoding process so far, more appropriately sized music data is read, Can be stored in the buffer area. That is, the time required for decoding the music data stored in the buffer area B is estimated, and the size of the buffer area C is determined according to the amount of data that can be read within the estimated time. For this reason, music data can be efficiently read from the hard disk drive 40 using a buffer capacity having a more appropriate size.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above-described embodiment, the size of music data to be read is calculated by calculation after the buffer area C. However, music data is read into the buffer area A and the buffer area B also after the buffer area C. Similarly to the above, the size of the buffer area may be determined in advance. That is, the amount of music data to be read for the first time, the second time, the third time,... May be fixedly determined in advance.

  The amount of music data read out gradually increases initially, but the amount of music data read out after a certain number of times can be set to a fixed value so as not to increase beyond a predetermined size. The size of this fixed value may be usually the same as the amount of pre-read data when music data is continuously played back.

  In the above-described embodiment, the present invention is described by taking as an example a case where a cue instruction is input to the data reproducing apparatus 10 as a discontinuous content data read instruction in a situation where music is continuously reproduced. However, the discontinuous content data read instruction is not limited to the cue instruction. For example, the present invention can be applied even in the case where a fast-forward instruction for fast-forwarding and fast-forwarding the music being played is input to the data playback device 10.

  In the above-described embodiment, the present invention has been described by taking the case where the data reproducing apparatus 10 reproduces music data as content data as an example. However, the content data reproduced by the data reproducing apparatus 10 is not limited to music data, and is a moving image. The present invention can be applied to any data reproducing apparatus that continuously reproduces content data of a plurality of contents such as data.

  In the above-described embodiment, the decoding process, the buffer process, and the file system process illustrated in FIG. 3 have been described as being implemented by software. However, these processes are performed by hardware such as an ASIC (Application Specific IC). It may be realized.

The block diagram explaining an example of the internal structure of the data reproduction apparatus which concerns on one Embodiment of this invention. The figure for demonstrating an example of the buffer area | region formed in the data reproduction apparatus of FIG. FIG. 3 is a flowchart for schematically explaining processing when a cueing instruction is input in the data reproduction apparatus of FIG. 1. The figure which shows the flowchart for demonstrating the content of the decoding process performed in the data reproduction apparatus of FIG. The figure which shows the flowchart for demonstrating the content of the buffer process performed in the data reproduction apparatus of FIG.

Explanation of symbols

10 Data reproduction device 20 CPU
22 RAM
24 ROM
26 User interface 28 Display unit 30 Audio output unit 32 Internal bus 40 Hard disk drive 42 Memory control unit

Claims (8)

Storage means for storing one or more content data;
First continuous reproduction means for sequentially reading out content data from the storage means and continuously reproducing the content data;
Input means for allowing a user to input a discontinuous playback instruction that is a playback instruction for discontinuous content data when content data is being played back continuously by the first continuous playback means;
When the discontinuous reproduction instruction is input from the input unit, the content data based on the discontinuous reproduction instruction is sequentially read from the storage unit and stored in the buffer area, and the size of the read content data Reading means for gradually increasing the length;
Second continuous playback means for continuously playing based on the content data stored in the buffer area;
A data reproducing apparatus comprising:   2. The data reproducing apparatus according to claim 1, wherein a size of the content data when the reading unit sequentially reads the content data from the storage unit is predetermined.   The size of the content data when the reading unit sequentially reads the content data from the storage unit is determined in advance until the second time of reading the content data from the storage unit, but is calculated by calculation after the third time. The data reproducing apparatus according to claim 1, wherein:   The amount of content data read out the third time is determined based on the time taken to decode the content data read out the first time and the size of the content data read out the second time. 4. The data reproducing apparatus according to claim 3, wherein a time required for decoding for reproduction is estimated and determined based on a size of content data that can be read within the estimated time.   The size of reading the content data for the third time is the content data to be read for the third time within the time for decoding to reproduce the content data read for the second time in consideration of the margin at the estimated time. The data reproducing apparatus according to claim 4, wherein the reading is set so as to be completed.   The content data is music data, and the discontinuous reproduction instruction is a cue instruction that is an instruction to skip the currently reproduced music and start reproduction from the beginning of the next music. The data reproducing device according to any one of claims 1 to 5. Sequentially reading out the content data from the storage means in which one or a plurality of content data is stored, and continuously reproducing the content data;
A step in which a user inputs a discontinuous reproduction instruction that is an instruction to reproduce discontinuous content data when the content data is being reproduced continuously;
When the non-continuous reproduction instruction is input, the content data based on the non-continuous reproduction instruction is sequentially read from the storage means and stored in the buffer area, and the size of the read content data is gradually increased; and
Continuously playing based on the content data stored in the buffer area;
A method for controlling a data reproducing apparatus. Sequentially reading out the content data from the storage means in which one or a plurality of content data is stored, and continuously playing back the content data;
A step in which a user inputs a discontinuous reproduction instruction that is an instruction to reproduce discontinuous content data when the content data is being reproduced continuously;
When the non-continuous reproduction instruction is input, the content data based on the non-continuous reproduction instruction is sequentially read out from the storage means and stored in the buffer area, and the size of the read content data is gradually increased; and
Continuously playing based on the content data stored in the buffer area;
For causing the data reproducing apparatus to execute the program.

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