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CD "rot" - blemishes on CDs that spread

by austinbarry / January 19, 2006 9:18 PM PST

Sometimes CDs which I burn contain holes in the media. These holes are transparent (or at least you can see through to the CD label) and can start anywhere on the CD but mostly start at the edges. The holes frequently spread, even if the CD is sitting in a case, eventually wiping out entire tracks (for music CDs) or making data CDs virtually unusable. I've seen this happen on name-brand CDs (Memorex, etc). Although I first suspected dust and dirt, the CD surface itself is perfectly smooth.

I'm wondering if anyone knows what causes this. I've seen it happen to CDs kept in my car (both summer and winter) and to CDs kept at home. I've seen it happen to CDs kept in CD binders and cases. I'm wondering if anyone knows what causes this.. is it the CD player, the CD burner (I use the CD-RW drive that came with my 2002 Dell computer), or is it the CD media itself that is bad. The only protection I know of is to burn two (or more) copies of every CD and hope for the best. I've never seen this happen to pre-recorded CDs.

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