Sony PCV-W20 User Manual
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Why doesn't my optical drive (CD-RW) record to CD-RW media?
If you are having difficulty with writing, erasing, or formatting on your CD-RW media, the reason may be that the media is
not compatible with your high-speed CD-RW drive. Try using CD-RW media that is identified as "high-speed" (4X or higher)
for maximum performance and compatibility.
Page 73
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