How to verify CD? ECC or fsck not ISO MD5

From: Peter D. (psd_at_home.invalid)
Date: 08/26/04 

Date: Thu, 26 Aug 2004 17:00:15 +1000

Hi,

How do you verify the integrity of a CD-RW?

Low down there are error detecting codes and error correcting codes involved.
Is there any way to count the number of times an ECC has to be used to read
a disc? You can't fsck an ISO9660 disk. You can't do a recursive diff
against the original file tree if it doesn't exist. Likewise you normally
don't have the MD5sum of a random disk. (Even if you did have it it would
not show that you were relying on the ECCs.)

I have been getting a lot of Input/Output errors lately and I don't know
whether to blame the drive, the media, or the operator.

This program seems relevant, but it is for some other operating system. :-(
http://www.elpros.si/CDCheck/helplink.php?helpfn=overview

BTW, my burner is supposed to have an 8Meg buffer, but "hdparm -i" reports
"BuffSize=0kB". 

-- 
Peter D.
Sig goes here...