6 Feb
2007
6 Feb
'07
8:30 p.m.
arcarlini at iee.org wrote:
At what speed do you write them? I think 1x speed would work the best,
but that about a hour for your data.
Mine have been gradual.
I _think_ many of mine (not yet into double digits) were badly written
rather than victims of decay. I only know for certain of one CD and one
DVD that tested OK at write-time and failed at some later stage. Both
of those were total failures. The very first failure I noticed (the one
that taught me that a checksum of some sort was useful!) was a partial
failure - only a few files were unrecoverable and those were available
elsewhere anyway. I've had many more failed-verification-during-write
cases, and when I play around with those I usually find that only a
few blocks of data are dead.