[paranoia] BUG in the Teac CD-532E-B CD-ROM drive
xiphmont at xiph.org
Mon Nov 15 12:11:42 PST 1999
> I have a TEAC CD-532E-B ATAPI CD-ROM drive. This drive sometimes returns
> wrong data. Happens when the CD is dirty or scrathed. A normal read-error,
> only that the drive delivers bad data as good, that is it doesn't report
> any error. The OS thinks everything is all right.
Not surprising. A large number of drives do not bother to return errors.
> Happen with Audio CDs ( Red book ).
> It sounds like a silence in the resulting file, normally around one
> second long.
> Here is an analisys of the problematic segment with 3 rips of the
> same track done with cdda2wav under linux.
> silence is a constant value ( not zero ! )
> different for left and right
A simple way to fill in the gap is to hold the last known good value. The
*drive* knows it has a problem....
> P.S.: Is there some "Broken Hardware" web-site , where I can also
> submit these foundings ?
None that I'm aware of; at least, none that seems to take any great care about
accuracy. I can't offer to do it myself; I'm already stretched too thin to
handle another project (sorry)-:
Anyone else who wants to do it has my full support tho :-)
--- >8 ----
List archives: http://www.xiph.org/archives/
Paranoia homepage: http://www.xiph.org/paranoia/
To unsubscribe from this list, send a message to 'paranoia-request at xiph.org'
containing only the word 'unsubscribe' in the body. No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.
More information about the Paranoia