Sony CDX-M3DI About MP3 files, Notes on CD-Rsrecordable CDs/CD, RWs rewritable CDs, 01US02CD-U.fm

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Notes on CD-Rs (recordable CDs)/CD-	About MP3 files
RWs (rewritable CDs)

This unit can play the following discs:

Type of discs Label on the disc

Audio CD

MP3 files

•Some CD-Rs/CD-RWs (depending on the equipment used for its recording or the condition of the disc) may not play on this unit.

•You cannot play a CD-R/CD-RW that is not finalized*.

•You can play MP3 files recorded on CD- ROMs, CD-Rs, and CD-RWs.

•A CD-R/CD-RW to which a session can be added can be played.

*A process necessary for a recorded CD-R/CD-RW disc to be played on the audio CD player.

MP3 (MPEG 1 Audio Layer-3) is a standard technology and format for compressing a sound sequence. The file is compressed to about 1/10 of its original size. Sounds outside the range of human hearing are compressed while the sounds we can hear are not compressed.

Notes on discs

You can play MP3 files recorded on CD-ROMs, CD-Rs, and CD-RWs.

The disc must be in the ISO 9660*1 level 1 or level 2 format, or Joliet or Romeo in the expansion format.

You can use a disc recorded in Multi Session*2.

*1 ISO 9660 Format

The most common international standard for the logical format of files and folders on a CD-ROM.

There are several specification levels. In Level 1, file names must be in the 8.3 format (no more than 8 characters in the name, no more than 3 characters in the extension “.MP3”) and in capital letters. Folder names can be no longer than 8 characters. There can be no more than 8 nested folder levels. Level 2 specifications allow file names up to 31 characters long.

Each folder can have up to 8 trees.

For Joliet or Romeo in the expansion format, make sure of the contents of the writing software, etc.

*2 Multi Session

This is a recording method that enables adding of data using the Track-At-Once method. Conventional CDs begin at a CD control area called the Lead-in and end at an area called Lead-out. A Multi Session CD is a CD having multiple sessions, with each segment from Lead-in to Lead-out regarded as a single session.

CD-Extra: The format which records audio (audio CD data) as tracks on session 1, and records data as tracks on session 2.

Mixed CD: In this format, data is recorded as track 1, and audio (audio CD data) is recorded as track 2.

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CDX-M3DI 3-251-042-11(1)