JP2005293627A - Recording and reproducing device and av data dubbing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it possible to reduce encoder and decoder occupying periods for rate conversion dubbing processing by changing a dubbing method in accordance with a recording bit rate of AV data when rate conversion dubbing is carried out. <P>SOLUTION: A recording and reproducing device 10 is provided with; an HD 15 which records AV data; an input and output I/F 16 in which a DVD 17 is mounted; a dubbing means 21a which dubs by either a rate conversion dubbing method which dubs after re-encoding or a high-speed dubbing method which dubs without re-encoding; and a dubbing determination means 21b which compares a recording bit rate set at a time when the rate conversion dubbing is carried out with a recording bit rate when AV data to be dubbed are recorded, and determines which method is taken for dubbing the AV data, the rate conversion dubbing method or the high-speed dubbing method. The dubbing means 21a carries out the high-speed dubbing when the recording bit rate of the AV data is below the recording bit rate set at a time when the rate conversion dubbing is carried out. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording / reproducing apparatus and a dubbing method for AV data, and more particularly to a recording / reproducing apparatus for recording / reproducing AV data on a recording medium such as a hard disk or a DVD, and in particular, an essential function of the recording / reproducing apparatus. This is related to the dubbing method.

  In recent years, digital information that includes a recording medium such as a hard disk (hereinafter referred to as HD) or a digital versatile disk (hereinafter referred to as DVD), records AV data received by a tuner on HD or DVD, and reproduces the recorded AV data. Recording / reproducing devices have been developed. In such a digital information recording / reproducing apparatus, a dubbing function for copying AV data recorded on one disc to the other disc is essential.

  In general, as a procedure for performing dubbing, first, AV data to be dubbed is selected, and AV data is dubbed in the selected order. At this time, there are rate conversion dubbing and high-speed dubbing as types of dubbing, and it is left to the user to select which dubbing is performed.

  The rate conversion dubbing is dubbing in which AV data to be dubbed is read from the disc, re-encoded through an encoder, and the AV data is copied to the dubbing destination disc. In this dubbing method, AV data can be copied to a dubbing destination disk at a desired recording bit rate. However, since the AV data is re-encoded, the dubbing execution speed is constant. That is, the same dubbing execution time as the recording length of the AV data to be dubbed is required. Further, during the rate conversion dubbing, the dubbing process uses an encoder and a decoder, so that there is a restriction that reproduction / broadcast viewing cannot be performed.

  On the other hand, the high-speed dubbing is dubbing in which AV data to be dubbed is copied to a dubbing destination disk without re-encoding after AV data to be dubbed is read from the disk. Since it is basically equivalent to copying a file, the dubbing execution speed varies depending on the system configuration and the recording bit rate of AV data, but there is a system that has a maximum speed of about 24 times. Since the encoder and decoder are not used during high-speed dubbing, playback and broadcast viewing can be performed during high-speed dubbing.

In order to solve the problem of restriction on the use of encoders and decoders during rate conversion dubbing, for example, there is a system as proposed in Patent Document 1. In this system, a dubbing-dedicated encoder and decoder are added, a rate conversion dubbing is performed using the added encoder and recorder, and playback / broadcast viewing is performed by an existing encoder and decoder.
Japanese Patent Laid-Open No. 2003-224813

  As described above, in the conventional technique, since the encoder and the decoder are used during the rate conversion dubbing, there is a limitation that reproduction / broadcast viewing cannot be performed. Further, in the system as proposed in Patent Document 1, a configuration in which one dubbing encoder and decoder is added to solve the above problem is adopted, but this method adds a circuit to the system. Will be necessary and will increase costs.

  The present invention has been made in view of the above circumstances, and when performing rate conversion dubbing, an encoder and a decoder by rate conversion dubbing processing are performed by switching the dubbing method according to the recording bit rate of AV data. It is an object of the present invention to provide a recording / reproducing apparatus and an AV data dubbing method capable of shortening the occupation period.

  In order to solve the above-mentioned problem, the first technical means performs recording after recording and recording means for recording AV data on a recording medium, reproduction means for reproducing the recorded AV data, and dubbing after performing re-encoding. In a recording / reproducing apparatus having a dubbing means for performing dubbing by any one of rate conversion dubbing and high-speed dubbing that performs dubbing without re-encoding, a recording bit rate set at the time of rate conversion dubbing, and an AV for performing dubbing It comprises a dubbing judging means for comparing a recording bit rate at the time of data recording and judging whether the AV data is dubbed by the rate conversion dubbing or the high speed dubbing according to the comparison result. Is.

  The second technical means includes determination processing setting means for setting validity / invalidity of the determination processing of the dubbing method by the dubbing determination means in the first technical means, and when executing the rate conversion dubbing, When the setting is valid, the dubbing determination unit executes the dubbing method determination process on all AV data to be dubbed. When the setting is invalid, the dubbing unit determines all the AVs to be dubbed. The data is dubbed by the rate conversion dubbing.

  According to a third technical means, in the first or second technical means, based on the determination result by the dubbing determination means, the AV data set to be subjected to the rate conversion dubbing and the AV data set to be subjected to the high speed dubbing are classified. Characterized in that the dubbing means performs a dubbing process for the AV data set for performing the rate conversion dubbing prior to a dubbing process for the AV data set for performing the high speed dubbing. It is a thing.

  According to a fourth technical means, in the third technical means, the AV data sorting means arranges the order in which the AV data included in the AV data set to be rate-converted dubbing is dubbed under an arbitrary condition. It is characterized by changing.

  A fifth technical means is the third technical means, wherein the AV data sorting means rearranges the order in which dubbing is performed under arbitrary conditions for AV data included in the set of AV data to be subjected to high-speed dubbing. It is characterized by that.

  The sixth technical means is a recording means for recording AV data on a recording medium, a reproducing means for reproducing the recorded AV data, rate conversion dubbing for performing dubbing after re-encoding, and re-encoding. In the AV data dubbing method for performing dubbing of AV data using a recording / reproducing apparatus having a dubbing means for performing dubbing by any method of high-speed dubbing without dubbing, the recording set at the rate conversion dubbing A dubbing determination for comparing a bit rate with a recording bit rate at the time of recording of AV data to be dubbed, and determining whether the AV data is dubbed by the rate conversion dubbing or the high-speed dubbing based on the comparison result It is characterized by having steps.

  The seventh technical means has a determination processing setting step for setting validity / invalidity of the determination processing of the dubbing method in the dubbing determination step in the sixth technical means, and when performing the rate conversion dubbing, If the setting is valid, the dubbing determination step executes the dubbing method determination process for all AV data to be dubbed. If the setting is invalid, the dubbing step determines all the AVs to be dubbed in the dubbing step. The data is dubbed by the rate conversion dubbing.

  According to an eighth technical means, in the sixth or seventh technical means, based on the determination result in the dubbing determination step, the AV data set to be subjected to the rate conversion dubbing and the AV data set to be subjected to the high speed dubbing are classified. And a dubbing process of the AV data set for performing the rate conversion dubbing is performed prior to the dubbing process of the AV data set for performing the high speed dubbing in the dubbing step. It is a thing.

  According to a ninth technical means, in the technical means according to claim 8, in the AV data sorting step, the order in which dubbing is performed under arbitrary conditions on the AV data included in the set of AV data to be rate-converted dubbed is performed. It is characterized by sorting.

  The tenth technical means rearranges the order in which the dubbing is performed under arbitrary conditions on the AV data included in the AV data set to be subjected to the high-speed dubbing in the AV data sorting step in the eighth technical means. It is characterized by that.

  When performing rate conversion dubbing, the dubbing method can be switched according to the recording bit rate of the AV data to shorten the occupancy period of the encoder and decoder by the rate conversion dubbing processing.・ You can reduce the time when you cannot watch the broadcast.

(First embodiment)
FIG. 1 is a block diagram showing a configuration example of a recording / reproducing apparatus according to an embodiment of the present invention. In the figure, 10 is a recording / reproducing apparatus, and the recording / reproducing apparatus 10 includes a receiving unit 11, an AD converter 12, An encoder 13, a data buffer 14, an HD (hard disk) 15, an input / output interface (input / output I / F) 16 for detachably mounting an external recording medium 17 (hereinafter referred to as DVD 17), a decoder 18, and a DA converter 19. , An operation unit 20 and a control unit 21 are provided.

The recording / reproducing apparatus 10 of this embodiment performs recording / reproduction of AV data using the HD 15 and the DVD 17 as recording media, and the following description will be given by taking a dubbing process from the HD 15 to the DVD 17 as an example.
In this embodiment, HD and DVD are used as recording media, but the recording media are not limited to these, and can be applied to all recording media capable of recording AV data. For example, it goes without saying that the present invention can be applied to a cassette tape type such as VHS and D-VHS, a Blu-ray disc expected to be a next-generation DVD, and an optical disc such as an HD DVD.

  In FIG. 1, the receiving unit 11 includes an antenna and a tuner that receive broadcast waves. The AD converter 12 converts the analog video / audio signal into a digital video / audio signal. The encoder 13 compresses the digital video / audio signal input from the AD converter 12 or the AV data read from the HD 15 during rate conversion dubbing. The data buffer 14 stores AV data when writing to or reading from the HD 15 and the DVD 17. The decoder 18 restores the AV data to a digital video / audio signal in order to output the video / audio. The DA converter 19 converts the digital video / audio signal into an analog video / audio signal in order to output the video / audio. The operations in these blocks are executed by the control unit 21 controlling each block in accordance with instructions from the operation unit 20.

In the recording / reproducing apparatus 10, the data flow when performing rate conversion dubbing from the HD 15 to the DVD 17 is as follows.
First, reading of AV data to be dubbed from the HD 15 is started. The read AV data is stored in the data buffer 14 and transferred to the encoder 13 and the decoder 18. The AV data transferred to the encoder 13 is re-encoded based on the recording bit rate set during dubbing. The re-encoded AV data is again transferred to the data buffer 14 and recorded on the DVD 17. The AV data transferred to the decoder 18 is restored to a video / audio signal by the decoder 18 and output to the outside.

  On the other hand, when high-speed dubbing is performed, AV data read from the HD 15 is stored in the data buffer 14 and recorded on the DVD 17 as it is without re-encoding.

  The control unit 21 includes a CPU (not shown) and a memory (ROM, RAM, etc.). In this memory, each means for executing the function as the recording / reproducing apparatus 10 of the present embodiment is used as a dubbing processing program. Stored. This dubbing processing program includes a dubbing means 21a, a dubbing judging means 21b, and a judging process setting means 21c. The dubbing means 21a performs rate conversion dubbing in which dubbing is performed after re-encoding and dubbing without re-encoding. The dubbing process is executed by one of the high-speed dubbing methods to be performed. The dubbing determination means 21b compares the recording bit rate set at the time of rate conversion dubbing with the recording bit rate at the time of recording of the AV data to be dubbed, and the AV data is subjected to either rate conversion dubbing or high speed dubbing according to the comparison result. A process for determining whether to perform dubbing by the method is executed.

  As a result of the determination by the dubbing determination means 21b, the dubbing means 21a performs high-speed dubbing and dubbing when the recording bit rate when recording AV data to be dubbed is lower than the recording bit rate set during rate conversion dubbing. When the recording bit rate at the time of AV data recording is higher than the recording bit rate set at the time of rate conversion dubbing, rate conversion dubbing is performed.

  The determination process setting unit 21c executes a process for setting validity / invalidity of the dubbing method determination process by the dubbing determination unit 21b. When the setting is “valid”, the dubbing determination unit 21b executes the dubbing method determination process for all AV data to be dubbed. When the setting is “invalid”, the dubbing unit 21a performs all the dubbing processing. Are dubbed by rate conversion dubbing. The recording / reproducing apparatus 10 may be configured not to include the determination process setting unit 21c. In this case, the dubbing determination unit 21b executes a dubbing method determination process for all AV data to be dubbed.

FIG. 2 is a flowchart for explaining an example of an AV data dubbing method to which the present invention is applied. FIG. 3 is a diagram illustrating an example of a dubbing method that is actually executed in accordance with a recording bit rate at the time of recording AV data to be dubbed. In the present embodiment, the dubbing process is executed based on the recording / reproducing apparatus 10 shown in FIG.
In FIG. 2, the recording / reproducing apparatus 10 first selects AV data to be dubbed before starting rate conversion dubbing (step S1). In this embodiment, as shown in FIG. 3, it is assumed that four AV data recorded at SP, EP, FINE, LP, etc. are recorded from the HD 15 as shown in FIG. Here, each recording bit rate means SP (standard mode), EP (longest time mode), FINE (high image quality mode), LP (long time mode), and in order of increasing bit rate, FINE>SP>LP> EP.

  When the selection of the AV data to be dubbed in step S1 is completed, the recording / reproducing apparatus 10 starts rate conversion dubbing (step S2). Here, the recording bit rate of rate conversion dubbing is determined. In this embodiment, as shown in FIG. 3, rate conversion dubbing is performed with “LP”.

  Next, after determining the recording bit rate (that is, LP) for rate conversion dubbing in step S2, the recording / reproducing apparatus 10 confirms the setting contents to determine whether or not to perform dubbing method determination processing (step S3). In this setting content, “valid” is set when the dubbing method determination process is performed, and “invalid” is set when the determination process is not performed. In the rate conversion dubbing, the dubbing is performed, and at the same time, the video and audio of the AV data being dubbed is also reproduced and output, and the dubbing may be performed while viewing the reproduced video and audio. Therefore, in this embodiment, the validity / invalidity of the dubbing method determination process can be set.

  When “invalid” is set as the setting content in the above step S3 (in the case of YES), the recording / reproducing apparatus 10 performs the AV data to be subjected to all the selected dubbing by rate conversion dubbing in the selected order. Dubbing is performed (step S4).

  In the above step S3, when “valid” is set in the setting contents (in the case of NO), rate conversion dubbing, high-speed dubbing or dubbing is performed on the selected AV data to be dubbed. A method determination process is performed (step S5). Here, which one of the rate conversion dubbing method and the high-speed dubbing method is used for the AV data is determined by the following equations (1) and (2).

Rate _Data ≤ Rate _Dubb (High-speed dubbing) (1)
Rate _Data > Rate _Dubb (Rate conversion dubbing) (2)
However, Rate _Data indicates a recording bit rate at the time of recording each AV data, and Rate _Dubb indicates a recording bit rate set at the time of rate conversion dubbing.

From the above equation (1), when the AV data recording bit rate Rate _Data is equal to or less than the dubbing setting recording bit rate Rate _{Dubb, the} image quality does not change even if re-encoding is performed through the encoder 13, so the rate conversion dubbing is not performed at high speed. Dubbing is performed using dubbing. Further, from the above equation (2), when the recording bit rate Rate _Data of AV data is larger than the recording bit rate Rate _Dubb set for dubbing, re-encoding is performed through the encoder 13 to encode into AV data with a small amount of information. Therefore, it is necessary to perform dubbing using rate conversion dubbing.

In the example shown in FIG. 3, when the recording bit rate Rate _Data of each AV data is applied to the above-described formula (1) and formula (2) with respect to the recording bit rate Rate _Dubb (LP) of the dubbing setting, the AV data 1 (SP) and AV data 3 (FINE) are dubbed by rate conversion dubbing, and AV data 2 (EP) and AV data 4 (LP) are dubbed by high-speed dubbing.

  Thus, the dubbing process is executed for each AV data according to the determination result in step S5 (step S6).

  According to the present invention, when rate conversion dubbing is performed on AV data, AV data that does not require rate conversion dubbing is determined, and as a result, the corresponding AV data (that is, the recording bit rate at the time of recording is dubbed). By performing high-speed dubbing (AV data below the set recording bit rate), the occupation period of the encoder and decoder by the rate conversion dubbing process can be shortened.

(Second Embodiment)
FIG. 4 is a block diagram showing a configuration example of a recording / reproducing apparatus according to another embodiment of the present invention. The recording / reproducing apparatus 10 of this embodiment further includes an AV data sorting means 21d in the dubbing processing program of the recording / reproducing apparatus 10 shown in FIG. 1, and the other apparatus configuration is the recording / reproducing apparatus shown in FIG. Since it is the same as the structure of the apparatus 10, description here shall be abbreviate | omitted.

  Based on the determination result by the dubbing determination unit 21b, the AV data classification unit 21d executes a process of sorting into a set of AV data for performing rate conversion dubbing and a set of AV data for performing high-speed dubbing. Furthermore, the AV data sorting means 21d may have a function of rearranging the order of performing dubbing under arbitrary conditions for AV data included in a set of AV data for which rate conversion dubbing or high-speed dubbing is performed. In the recording / reproducing apparatus 10 according to the present embodiment, the dubbing unit 21a performs the dubbing process of the AV data set to be rate-converted dubbed by the AV data sorting unit 21d, and the dubbing process of the AV data set to be performed at high speed. Can be done prior to.

FIG. 5 is a flowchart for explaining another example of the AV data dubbing method to which the present invention is applied. In this embodiment, it is assumed that the dubbing process is executed based on the recording / reproducing apparatus 10 shown in FIG.
The processing from step S11 to step S15 of the present embodiment is the same as the processing from step S1 to step S5 shown in FIG. That is, the recording / reproducing apparatus 10 selects the AV data to be dubbed before starting the rate conversion dubbing (step S11), and when the selection of the AV data to be dubbed is completed, starts the rate conversion dubbing (step S12). ).

  Next, after determining the recording bit rate of the rate conversion dubbing in step S12, the recording / reproducing apparatus 10 confirms the setting contents whether or not to perform the dubbing method determination process (step S13). In this setting content, “valid” is set when the determination process of the dubbing method is performed, and “invalid” is set when the determination process is not performed. When “invalid” is set in the setting content in the above step S13 (in the case of YES), the recording / reproducing apparatus 10 performs the AV data to be subjected to all the selected dubbing by rate conversion dubbing in the selected order. Dubbing is performed (step S14).

  If “valid” is set in the setting contents in the above step S13 (in the case of NO), whether the selected AV data to be dubbed is subjected to rate conversion dubbing or high-speed dubbing or dubbing. A method determination process is performed (step S15).

  When the determination of the dubbing method to be executed for each AV data is completed in step S15, the recording / reproducing apparatus 10 optimizes the dubbing execution order to shorten the time required for rate conversion dubbing (step S16).

  FIG. 6 is a diagram for explaining an example of the dubbing execution order optimization process for the AV data shown in FIG. The recording / reproducing apparatus 10 performs the dubbing process in which the rate conversion dubbing and the high-speed dubbing are mixed as a result of performing the dubbing method determination process on the AV data in step S15.

  As shown in FIG. 6A, after the dubbing process by rate conversion dubbing for the AV data 1 shown in FIG. 3 is completed, the dubbing process by high speed dubbing is performed on the AV data 2. During the high-speed dubbing process, the encoder 13 and the decoder 18 are not used, and reproduction / broadcast viewing can be performed. However, when the high-speed dubbing process of the AV data 2 is completed, the rate conversion dubbing process is executed on the AV data 3, and the encoder 13 and the decoder 18 are used by this rate conversion dubbing process, so that playback / broadcast viewing is performed. I can't do that. In this way, dubbing processing in which rate conversion dubbing and high-speed dubbing are mixed is performed alternately.

  Therefore, in order to relax the restriction of playback / broadcast viewing more effectively, in step S16, the AV data is subjected to rate conversion dubbing and the AV data is subjected to high speed dubbing, and according to the classification result. Then, the dubbing process of the AV data set for performing the rate conversion dubbing is executed prior to the dubbing process of the AV data for performing the high speed dubbing.

  FIG. 6B is a diagram illustrating an example of a state in which the dubbing execution order is changed. As shown in FIG. 3, AV data sets for rate conversion dubbing are AV data 1 and AV data 3, and AV data sets for high-speed dubbing are AV data 2 and AV data 4. In this embodiment, the order of dubbing is changed so that a set of AV data to be rate-converted dubbing is placed before a set of AV data to be dubbed at high speed.

  As described above, by executing the rate conversion dubbing process prior to the high-speed dubbing process, the encoder 13 and the decoder 18 can be used when the rate conversion dubbing process is completed. That is, after the rate conversion dubbing process is completed, playback / broadcast viewing is possible in the high-speed dubbing process that is continuously executed. Therefore, rate conversion dubbing and high-speed dubbing are executed alternately as shown in FIG. Thus, it is possible to more effectively relax restrictions on playback / broadcast viewing.

  Also, when the AV data set for rate conversion dubbing and the AV data set for high-speed dubbing are sorted, the AV data in each set can be rearranged in an arbitrary condition.

  Next, the recording / reproducing apparatus 10 performs dubbing execution after optimizing the dubbing execution order in step S16. First, dubbing of AV data included in a set of AV data to be rate-converted dubbing is performed (step S17). Since the encoder 13 and the decoder 18 are used during the rate conversion dubbing, reproduction / broadcast viewing cannot be performed.

  Next, when the rate conversion dubbing is completed, the recording / reproducing apparatus 10 performs the live so that the encoder 13 and the decoder 18 can be used for reproduction / broadcast viewing (step S18). From this point of time, the recording / reproducing apparatus 10 is ready for reproduction / broadcast viewing. Finally, dubbing of AV data included in a set of AV data to be subjected to high speed dubbing is performed (step S19).

According to the present invention, by comparing the recording bit rate set at the time of rate conversion dubbing with the recording bit rate at the time of recording of the AV data to be dubbed, it is possible to perform high-speed processing for AV data that does not require rate conversion dubbing. By performing dubbing by dubbing, it is possible to shorten the occupation period of the encoder and decoder by the rate conversion dubbing process.
Furthermore, by performing the dubbing process on the AV data for rate conversion dubbing prior to the AV data for high-speed dubbing, it is possible to more effectively relax restrictions on playback / broadcast viewing.

It is a block diagram which shows the structural example of the recording / reproducing apparatus which concerns on one Embodiment of this invention. It is a flowchart for demonstrating an example of the dubbing method of AV data to which this invention is applied. It is a figure which shows an example of the dubbing method actually performed according to the recording bit rate at the time of recording of AV data which performs dubbing. It is a block diagram which shows the structural example of the recording / reproducing apparatus which concerns on other embodiment of this invention. It is a flowchart for demonstrating the other example of the dubbing method of AV data to which this invention is applied. It is a figure for demonstrating an example of the dubbing execution order optimization process with respect to AV data shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Recording / reproducing apparatus, 11 ... Reception part, 12 ... AD converter, 13 ... Encoder, 14 ... Data buffer, 15 ... HD (hard disk), 16 ... Input-output I / F, 17 ... External recording medium (DVD), DESCRIPTION OF SYMBOLS 18 ... Decoder, 19 ... DA converter, 20 ... Operation part, 21 ... Control part, 21a ... Dubbing means, 21b ... Dubbing determination means, 21c ... Determination process setting means, 21d ... AV data classification means.

Claims (10)

  Recording means for recording AV data on a recording medium, reproducing means for reproducing the recorded AV data, rate conversion dubbing in which dubbing is performed after re-encoding, and high-speed dubbing in which dubbing is performed without re-encoding In the recording / reproducing apparatus having the dubbing means for performing dubbing by any of the above methods, the recording bit rate set at the time of the rate conversion dubbing is compared with the recording bit rate at the time of recording the AV data to be dubbed, and the comparison A recording / reproducing apparatus comprising dubbing determination means for determining whether the AV data is to be dubbed by the rate conversion dubbing or the high-speed dubbing according to a result.   2. The recording / reproducing apparatus according to claim 1, further comprising determination processing setting means for setting validity / invalidity of dubbing method determination processing by the dubbing determination means, wherein the setting is effective when the rate conversion dubbing is executed. In this case, the dubbing determination unit executes the dubbing method determination process for all AV data to be dubbed, and when the setting is invalid, the dubbing unit stores all the AV data to be dubbed as described above. A recording / reproducing apparatus which performs dubbing by rate conversion dubbing.   3. The recording / reproducing apparatus according to claim 1, wherein the AV data classification is performed based on a result of determination by the dubbing determination unit, wherein the AV data is subjected to rate conversion dubbing and the AV data is subjected to high-speed dubbing. And a dubbing means for performing a dubbing process for a set of AV data for performing the rate conversion dubbing prior to a dubbing process for a set of AV data for performing the high speed dubbing. .   4. The recording / reproducing apparatus according to claim 3, wherein the AV data sorting means rearranges the order in which dubbing is performed under an arbitrary condition with respect to AV data included in a set of AV data to be rate-converted dubbed. A characteristic recording / reproducing apparatus.   4. The recording / reproducing apparatus according to claim 3, wherein the AV data sorting means rearranges the order in which dubbing is performed under arbitrary conditions with respect to AV data included in a set of AV data to be subjected to high-speed dubbing. A recording / reproducing apparatus.   Recording means for recording AV data on a recording medium, reproducing means for reproducing the recorded AV data, rate conversion dubbing in which dubbing is performed after re-encoding, and high-speed dubbing in which dubbing is performed without re-encoding In the AV data dubbing method for performing dubbing of AV data using a recording / reproducing apparatus having a dubbing means for performing dubbing by any of the above methods, the recording bit rate set during the rate conversion dubbing and dubbing are performed. A dubbing determination step of comparing a recording bit rate at the time of recording AV data and determining whether the AV data is to be dubbed by the rate conversion dubbing or the high-speed dubbing according to the comparison result; AV data dubbing method.   In the dubbing determination step, the dubbing determination step includes a determination processing setting step for setting validity / invalidity of the determination processing of the dubbing method. When the rate conversion dubbing is performed, if the setting is valid, dubbing is performed in the dubbing determination step. The dubbing method determination process is executed for all AV data to be performed, and when the setting is invalid, all AV data to be dubbed is dubbed by the rate conversion dubbing in the dubbing step. The AV data dubbing method according to claim 6.   Based on the determination result in the dubbing determination step, an AV data classification step for classifying the AV data into a set of AV data for performing the rate conversion dubbing and a set of AV data for performing the high speed dubbing, and in the dubbing step, the rate conversion The AV data dubbing method according to claim 6 or 7, wherein a dubbing process for a set of AV data to be dubbed is performed prior to a dubbing process for the set of AV data to be dubbed at high speed.   9. The AV data according to claim 8, wherein the AV data sorting step rearranges the order in which dubbing is performed under an arbitrary condition with respect to AV data included in a set of AV data to be rate-converted dubbed. Dubbing method.   9. The AV data sorting step according to claim 8, wherein the AV data sorting step rearranges the order in which dubbing is performed under an arbitrary condition with respect to AV data included in the set of AV data to be subjected to high-speed dubbing. Dubbing method.

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