[LAD] [OT] CD-R masters, block error rate and dvd-r mystery...
nettings at folkwang-hochschule.de
Wed Jul 23 14:18:57 UTC 2008
Jörn Nettingsmeier wrote:
> * how on earth can the same content burned via cdrdao to a CD-R on a
> cdrw drive (Plextor) and a dvdrw drive (LG) differ in several hundred
> thousand bytes when read back in with cdparanoia?
hmm. again, here's what i did:
i burned the same disk-at-once session four times, using the following
cdrdao write /dev/<device> mytoc.toc
twice i wrote to /dev/cdrw, and twice to /dev/dvdrw.
all four disks were read back in using cdparanoia, to four different
directories: cdrw1, cdrw2, dvdr1, dvdr2.
when i cmp the files in cdrw, no diff.
when i cmp the files in dvdr, no diff.
when i cmp cdrwN to dvdrN, pooof! several thousand bytes differ.
please tell me it's really obvious and i'm doing something unspeakably
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