faulty CDROMs

[bob at rsi.com (Bob Gorman)]

At 09:47 PM 1/26/2005, Glenn Burkhardt wrote:
>> >is there an easy way of getting an MD5SUM from a CD
>> 
>> dd if=/dev/cdrom | md5sum
>
>This doesn't work for me.  With a CD that compares correctly against a 
>loopback device mounted ISO file image with 
>"diff -r /mnt/cdrom /mnt/iso_image", I get a different md5sum when reading the 
>data with 'dd'.

Perhaps this has the answer:

  http://mandrake.vmlinuz.ca/bin/view/Main/BurningCDsFromISOs