Today I scanned some DVDs I burned about 6 weeks ago and was astonished by the increase in PIE/PIF levels (measured in Plextools 2.21).
(Writer/reader: Plextor 716A)
Ritek +R 8X:
PIE (avg) 5.79 => 12.25
PIF (sum) 3322 => 7632
=> over 100% increase for both PIE/PIF within 6 weeks
Verbatim/Mitsubishi -R 8x
PIE (avg) 3.14 => 4.39
PIF: didn’t measure earlier, so no comparison possible
=> 40% increase within 6 weeks
In both cases, the error level as viewed in the graph seemed the same as before (i.e. no higher max levels, but the total number increased dramatically).
I measured a CD-R (also Ritek) burned at the same time as the DVDs, and the C1 level was exactly the same as six weeks earlier.
Are DVD-R media really so much more unstable over even such a short time? I find this hard to believe, but the error counts speak for themselves
What are your experiences with DVDs burned, say, two months ago? Do you also see a conspicuous increase in PIE/PIF levels?