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Yes there's a huge difference between professionally "pressed" CDs and burnt CDRs.

There are also special archival disks and burners, like M-Disc, which literally "engraves in stone": http://www.mdisc.com/



But a 10 year life span on CDRs. My personal experience is much different with both CDs and floppy disk (I still have some of those that work).




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