I'm checking all this now (have to reboot), but here is a blurb on the output from the 'cmp' that I found on the 'net:

The EOF on the ISO image means that the CD image is an EXACT copy PLUS padding. An EOF on /mnt/cdrom would have meant the CD was incomplete.


On Jan 30, 2004, at 11:20 AM, Timothy A. Chagnon wrote:


Tried to replicate your process...

The burn /seemed/ to go OK, but when I tried to verify it ...

1. cmp /dev/cdrom file.iso
   --> got an I/O error

I didn't get an I/O error on the cmp, but I did get this: cmp: EOF on file.iso

instead I tried my usual way of verifying cdrs:
$ md5sum file.iso
4f4a3c033db17cd090544932351eb970  file.iso
$ md5sum /dev/scd0
1862d022ca6cc665d45693663a8f545b  /dev/scd0

intersting...

isoinfo on both the /dev/scd0 and file.iso come out the same...
might have something to do with the UDF filesystem on the actual dvd.

2. find /mnt/cdrom -type f -print0 | xargs -0 md5sum >| ~/digest.disc
   --> got an I/O error

This got no errors.

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