On 27-Jul-00 Danilo Godec wrote:
> [...] and then cdrecord to burn this image. The writing went
> fine, no errors reported.
>
> However, after I have compared the files on the new CDR to those in the
> image (mounted via loopback), I discovered some files are not exactly the
> same
I had a similar problem with one kind of blanks -- no errors reported
writing, but lots of uncorrectable errors while reading the burned CD. A
change of blanks and no errors anymore.
> What could be the cause of that? Dirty lens or something similary
> trivial?
If it happens with 'all' blanks maybe -- so I would suppose the burned
would loose the track and give an error while burning in that case.
> Or maybe a firmware bug (just btw., writing audio in 2x speed always
> results in random clicks in the recording; while 1x speed seems to be
> fine) even?
Could be the same problem -- random clicks could also be produced by
bad media, not bad enough for write errors, but to many errors while
reading. Since audio data has no error-correction data I woul assume clicks
-- a lot more then you would find errors in data.
I'm astonished that you can read the bad data simply in, without any errors
reported from the kernel -- I usually got read errors and couldn't read the
file at all. If you have *no* errors reported but still see them in the
files this could mean a burning problem after all (where the errors get in
before they arrive on the CD and the error correction code can't help).
K.-H.
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E-Mail: Karl-Heinz Herrmann <[EMAIL PROTECTED]>
http://www.kfa-juelich.de/icg/icg7/FestFluGre/transport/khh/general.html
Sent: 28-Jul-00, 10:22:49
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