Sony D-NS921F - Manual (Page 6)

6
Music sources playable on this CD player
You can play the following 3 music sources on this CD player:
• Audio CDs
• ATRAC3plus/ATRAC3 format files
• MP3 files
Usable disc formats
You can use ISO 9660 Level 1/2 and Joliet extension format discs only.
ATRAC3plus and ATRAC3
“ATRAC3plus,” which stands for “Adaptive Transform Acoustic Coding3plus” is audio
compression technology, developed from the ATRAC3 format. Though the ATRAC3plus format
can compress music content to about 1/20 of its original size, you can still enjoy high quality
sound. The available transfer bit rates are 64 kbps and 48 kbps.
“ATRAC3,” which stands for “Adaptive Transform Acoustic Coding3” is audio compression
technology that satisfies the demand for high sound quality and high compression rates. The
ATRAC3 format can compress music content to about 1/10 of their original size, which
contributes to reduction of the media volume. The available transfer bit rates are 132 kbps,
105 kbps and 66 kbps.
The usable number of groups and files
• Maximum number of groups: 255
• Maximum number of files: 999
For details, refer to the supplied booklet “SonicStage Simple Burner.”
Note on saving files on the media
Do not save files in other formats or unnecessary groups on a disc that has ATRAC3plus/
ATRAC3 files.
MP3 files
MP3, which stands for MPEG-1 Audio Layer3, a standard for audio files compression supported
by the Motion Picture Experts Group, an ISO (International Organization for Standardization)
working group, enables compression of audio files to about 1/10 of the data size of a standard
compact disc. Since the MP3 encoding algorithm is public, there are various encoders/decoders
that are compliant with this standard, including freeware that is available for no charge. Thus, the
MP3 standard is widely used in the computer field.