[plug] Comparing to CD's

Christian christian at amnet.net.au
Wed Oct 18 09:40:05 WST 2000

On Tue, Oct 17, 2000 at 05:52:47PM +0800, Anthony J. Breeds-Taurima wrote:
> Hi all,
> 	I have a quick question for everyone.  I have a friends CD. I have made a
> copy and the duplication reported no errors.  What I need to do is verify that
> the copy really was successful.   I still have the original CD.
> I thought something like:
> Insert Original CD:
> md5sum </dev/cdrom >disks.md5
> Insert copied CD:
> md5sum </dev/cdrom >>disks.md5

Sounds fair enough to me.  My only comment is that MD5'ing 650MB of data
will probably take quite a while.  If you're in a hurry you could
consider using a less collision-resistant hash function (MD4, CRC32 etc.)
which would probably be quite a bit quicker.

More information about the plug mailing list