Sony VRD-VC20 Operating Instructions Manual page 45

Writable CDs and compatibility
The drive can write to CD-R and CD-RW discs, when used with writing
software. To play back (read) these CD-R and CD-RW discs on other CD-
ROM drives, make settings on the writing software according to the purpose
of the data.
CD-R discs
Data can be written to this type of disc only once, and once it has been written,
it cannot be erased. Music CDs created on CD-R disc media can be played on
standard CD players.
CD-RW discs
Data can be written to and erased from this type of disc repeatedly. Typically,
a new CD-RW disc can be rewritten about 1,000 times.
Music CDs created on CD-RW disc media cannot be played on a CD player
unless it is designed to be CD-RW compatible.
High speed CD-RW discs
The drive can write to High Speed CD-RW disc media. Data written on High
Speed CD-RW discs can be read by standard CD-ROM drives.
Note
Drives that do not have the High Speed CD-RW logo cannot be used to write to High Speed
CD-RW discs. When writing or adding to such discs with a drive other than this one, make
sure that the drive has the High Speed CD-RW logo. Also, always set the writing speed to
that specified for the particular High Speed CD-RW disc media being used.
Ultra speed CD-RW discs
The drive can write to High Speed CD-RW and Ultra Speed CD-RW disc
media. Data written to these discs can be read by standard CD-ROM drives.
Note
Drives that do not have the Ultra Speed CD-RW logo cannot be used to write to Ultra Speed
CD-RW discs. When writing or adding to such discs with a drive other than this one, make
sure that the drive has the Ultra Speed CD-RW logo. Also, always set the writing speed to
that specified for the particular Ultra Speed CD-RW disc media being used.
Writing speed
When writing to CD-R and CD-RW discs, set the writing speed to that
specified on the disc. Change the writing speed on the writing software.
About playback/reading compatibility in CDs
CD-R and CD-RW discs created with the drive can be read on most CD-ROM
drives. However, some older CD-ROM drives cannot read CD-RW discs.
In addition, CD-R music discs created and finalized with the drive can be
played on most CD players, however, there are some CD players and
automobile CD players that do not guarantee playback of CD-R discs.
Also, CD-R music discs created with the drive can be played back on many
standard CD players. However, depending on the type of your player, playback
of CD-R and CD-RW discs may not be supported.
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