[CLUE-Tech] Verifying a CD

[Matt Gushee]

Is there a simple way of verifying that a CD contains a valid iso9660
filesystem? I know that cdrecord has a flag to do that at the time you
burn the CD, but I need to check some existing CDs. A while back I
burned several sets of Debian with my old (and very funky) CD burner,
and I know some of the CDs were bad, but I don't know which ones. I'd
like identify the coasters and get rid of them.

I have tried mounting the CDs, but I found that trying to mount a bad
one would lock up my machine for a long period of time, so I'd rather
not do it that way.

Thanks in advance for any tips.

-- 
Matt Gushee                 When a nation follows the Way,
Englewood, Colorado, USA    Horses bear manure through
mgushee at havenrock.com           its fields;
http://www.havenrock.com/   When a nation ignores the Way,
                            Horses bear soldiers through
                                its streets.
                                
                            --Lao Tzu (Peter Merel, trans.)