[lug] Hardware/Software Puzzle
David L. Anselmi
anselmi at anselmi.us
Sat Nov 1 22:53:25 MDT 2008
Paul E Condon wrote:
> md5sum /dev/hdd
> md5sum /dev/hdc
> This seems to work for CDs that have been manufactured by publishers.
> For software CDs from, e.g. Intuit, I always get the same md5sum on
> both reader and reader/writer. But for burnable CDs, I always get an
> I/O error on the reader/writer and I get a different md5sum on every
> re-read on the reader.
Yeah, it's a Linux thing. Read this:
If you use dd to read only the sectors actually part of the CD you
should get reliable checksums.
More information about the LUG