Sony drx-720ul User Manual

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Further, because of the differences in quality and characteristics between 
various CD-ROM drive, CD player, CD-R disc, and CD-RW disc 
manufacturers, playback may not be possible depending on the combination.
Writable DVDs and compatibility
The drive can write to DVD+R DL, DVD+R and DVD-R discs, as well as to 
DVD+RW and DVD-RW discs, when used with writing software. The 
playback (read) compatibility of data written by this drive depends on the 
capabilities of the DVD-ROM drives or the DVD players and on the logical 
format selected when the disc is recorded (written).
DVD+R DL/DVD+R/DVD-R Discs
Data can be written to this type of disc only once. Once it has been written, it 
cannot be erased. Playback (read) compatibility of DVD+R and DVD-R discs 
depends on the capability of the DVD-ROM drive and the DVD player and on 
the logical format selected when it is recorded (written).
DVD+RW and DVD-RW Discs
Data can be repeatedly written to or erased from this type of disc. Typically, a 
new DVD+RW or DVD-RW disc can be rewritten about 1,000 times. 
Playback (read) compatibility of DVD+RW and DVD-RW discs depends on 
the capability of the DVD-ROM drive and the DVD player and on the logical 
format selected when it is recorded (written).
About playback/reading compatibility in DVDs
DVD+R DL/DVD+R/DVD-R discs, as well as DVD+RW and DVD-RW 
discs created and finalized with the drive can be played back on almost all 
DVD-ROM drives. However depending on the type of your drive, playback of 
DVD+R DL, DVD+RW, and DVD-RW discs may not be supported.
In addition, some drives do not support multi-session (DVD+R DL/DVD+R/ 
DVD+RW) or multi-border (DVD-R/DVD-RW). In these cases, you can only 
play back the disc in single-session (DVD+R DL/DVD+R/DVD+RW) or 
single-border (DVD-R/DVD-RW).
Also, DVD-Video discs created with the drive can be played back on many 
standard DVD players. However depending on the type of your player, 
playback of DVD+RW and DVD-RW discs may not be supported.
Further, because of the differences in quality and characteristics between 
various DVD-ROM drive, DVD player, DVD+R DL disc, DVD+R disc, 
DVD+RW disc, DVD-R disc, and DVD-RW disc manufacturers, playback 
may not be possible depending on the combination. (Playback compatibility is 
not under warranty.)