Any utilities to verify my DVD-R against my .ISO file?

[hmmmmmmmm]

I didn't see any posts that had a solution for this one yet so I thought I'd ask. Are there any good programs that can verify a DVD you just burned to an ISO file you used to burn it?
I hear there is a feature like this in Nero, but have yet been able to find out where it's hidden. Any stand along programs that do it?
Thank you.

[oddyseus]

u can iso the dvd-r using decrypter and use the

fc written.iso source.iso

from command prompt on a Win2k or XP OS to check them byte per byte.

There r some options that expand its possibilites. U can find them in the help of the OS.