I have bought a 25 disc pack of Imation 8x DVD-R ages ago, it was MIL (Made in Luxembourg), Media ID was TTH01 (TDK 8x DVD-R).
- LiteOn scan from April 14, 2010
- Samsung scan from April 28, 2010
- LiteOn scan from April 28, 2010 (even though I scanned at 16x, 8x and 4x scans show a similar pattern)
- LiteOn TRT from April 28, 2010 (Samsung also stops reading with L-EC UNCORRECTABLE ERROR just before the 0.5 gigs mark)
The disc was burned exactly a month ago with Plextor PX-716A at 8x and stored in a transparent 2-disc DVD videobox. Interestingly, I have stored a fake MCC 003 in the same videobox and it doesn’t show signs of degradation.
As TDK has stopped producing blank media in Luxembourg anyway and 8x media is old-fashioned now, it might not be that interesting anymore. But if somebody has a lot of data stored on TDK 8x DVD-R, it might be worth a check whether the discs have been showing signs of degradation.
Actually just THIS is one of the main reasons why I prefer burning two sets of different media if there’s something important to backup. One can never rule out that discs might degrade, even discs from “reputable” brands, but it’s unlikely that two different disc types exhibit the same problems.