Shoutbox

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Originally posted by ShawnZ

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Originally posted by Patchou
Yes, it applied to all CD and DVD formats. Scratching the top of your disk makes them definitively unreadable.

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Not quite. CDs have the layer at the top, but DVDs have them dead center. You'll still harm it, but its not right below the layer.

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tbh, that doesn't make sense if you don't specify about what layers you talk about...
eg:
- "CDs have the layer at the top": What layer?
- "its not right below the layer.": What isn't below what layer?

Furthermore, I don't know what you're talking about with DVD's have them dead center. The only thing they have "dead center" is an adhesive layer which holds both sides together..

The difference that DVD's with double layers have is that they contain an extra semi-transparant/reflecting coating layer between the metal layer and the polycarbonate "data" layer. Single sided DVD's are exactly the same as CDROM's (thus appart from the adhesive middle layer). And depending on the format "single sided" or "double sided", this pancake is repeated for both sides or not.

All in all, DVD's are build up (almost) exactly the same as CDROM's. So I don't know what you're on about here....