摘要:
According to one embodiment, there is provided an optical disk apparatus including a recording unit (8, 6) which irradiates an optical disk (D) with a laser beam to record information in a first format and a second format, a generation unit (23) which generates warning information to an optical disk apparatus capable of performing a read process in the second format while being not capable of performing the read process in the first format, the warning information warning that information is recorded in the first format in the optical disk (D), and a control unit (3) which controls the recording unit to record the warning information in the second format in the optical disk (D) when the information is recorded in the first format in the optical disk (D).
摘要:
There is provided a system configured to prevent recording contents of various broadcasting schemes from being recorded together on a single recording medium while supporting various broadcasting schemes. An optical disc used here can record a digital stream complying with a predetermined digital broadcasting scheme and including specific information APP_NAME corresponding to a broadcasting scheme to be recorded. The broadcasting scheme to be recorded is checked (ST1116). If another digital stream has already been recorded on the optical disc, its broadcasting scheme is detected from APP_NAME, and is compared with that of the stream to be recorded. If these broadcasting schemes are different (NO in step ST1120), recording is aborted (ST1124).
摘要:
When a video source, which is not limited in the number of copying operations thereof, has been recorded, a reduced image thereof is created and stored in a recording medium (S3). Upon thumbnail image display (upon execution of a thumbnail function), the reduced image is displayed at a high speed. On the other hand, when a video source, only one-generation recording of which is enabled, has been recorded, no reduced image is created (stored) so as to avoid "copy limitation violation". When the only-one-generation-copy-enabled video source mage has been recorded, the thumbnail display function is realized by storing, in the recording medium, a pointer indicative of the position of the original image of a thumbnail image in video data (S4).
摘要:
An information processing apparatus comprises an encoder (10, 11, 12, 29) for encoding predetermined information into first video information ST 1 based on a first format; an insertion section (10, 11, 12, 29) for inserting conversion information VOBU_2NDREF_EA, VOBU_3RDREF_EA, VOBU_A_SYNCA into the first video information, the conversion information being used to encode the first video information into second video information ST 2 based on a second format, the conversion information being free from influencing reproduction of the first video information based on the first format; and a recording section (10, 11, 12, 60, 64) for recording the first video information containing the conversion information on an information recording medium D.
摘要:
On a recording medium, first information obtained by enciphering data with the first key and second information obtained by enciphering the first key with each of the predetermined second keys are recorded. A deciphering method is characterized by comprising the steps of inputting the first and second information (S34, S32), deciphering the first key using at least one of the second keys (S33), determining by a specific method that the obtained first key is correct (S33), and then deciphering the data using the first key to obtain the data (S35).
摘要:
When a video source, which is not limited in the number of copying operations thereof, has been recorded, a reduced image thereof is created and stored in a recording medium (S3). Upon thumbnail image display (upon execution of a thumbnail function), the reduced image is displayed at a high speed. On the other hand, when a video source, only one-generation recording of which is enabled, has been recorded, no reduced image is created (stored) so as to avoid "copy limitation violation". When the only-one-generation-copy-enabled video source mage has been recorded, the thumbnail display function is realized by storing, in the recording medium, a pointer indicative of the position of the original image of a thumbnail image in video data (S4).
摘要:
There is provided a system configured to prevent recording contents of various broadcasting schemes from being recorded together on a single recording medium while supporting various broadcasting schemes. An optical disc used here can record a digital stream complying with a predetermined digital broadcasting scheme and including specific information APP_NAME corresponding to a broadcasting scheme to be recorded. The broadcasting scheme to be recorded is checked (ST1116). If another digital stream has already been recorded on the optical disc, its broadcasting scheme is detected from APP_NAME, and is compared with that of the stream to be recorded. If these broadcasting schemes are different (NO in step ST1120), recording is aborted (ST1124).
摘要:
An information storage medium is designed to assure stable continuous recording without adverse effect, even when many defective areas are present on the information storage medium. To record information onto the information storage medium, a file unit is defined as a first unit. A contiguous data area unit to be treated as a continuous recording area is defined as a second unit. Furthermore, recording is done in the contiguous data area units and a collection of the contiguous data area units is organized into the file unit. In addition, an information recording place is provided in such a manner that the contiguous data area unit is so set that it extends over the recording area of another file already recorded on the information storage medium and a defective area on the information storage medium.