Re: [gentoo-user] Software for checking CDs and DVDs for errors?

[Joerg Schilling]

Pouru Lasse <lasse.pouru@××××××××××××.fi> wrote:

> I've got a bunch of scratched disc-based games (PS2, Xbox 360) that I'd
> like to check for errors. Is there any program for Linux that does this?
> I found and tried dvdisaster, but it only works for CDs, not
> DVDs. Everything else seems to be Windows-only.

I am not sure what you really intend as your question does not really explain 
whether you are interested in detecting problems or whether you are interested 
in the best results you could get from trying to recover data from a defectice 
medium.

In any case, I recommend "readcd", as it implements read recovery at SCSI level 
and thus prevents you from depending on the usually bad implementation in the 
kernel level driver.

In addition, readcd implements low level error discovery. Note that this works 
for CD media and for some DVD drives with DVD media. I currently know of no way 
to detect media quality for BluRay media.

BTW: The error recovery methods in readcd(1) are from sdd(1) that has been used 
to recover from bad HD media in the mid 1980s already.

Jörg

-- 
 EMail:joerg@××××××.net                    (home) Jörg Schilling D-13353 Berlin
    joerg.schilling@××××××××××××××××.de (work) Blog: http://schily.blogspot.com/
 URL: http://cdrecord.org/private/ http://sf.net/projects/schilytools/files/'