On Thu, May 01, 2003 at 10:51:01AM -0400, Bill Mills-Curran wrote: subssn594> md5sum file.iso subssn594> md5sum /dev/scd0 subssn594> Right? (I think I'm getting some errors while burning.) Yes, but I would do the second one this way: dd if=/dev/scd0 bs=2048 count=<iso file size/2048> | md5sum to prevent errors from trying to read past the end of the device. -- Charles R. Anderson <cra@wpi.edu> / http://angus.ind.wpi.edu/~cra/ PGP Key ID: 49BB5886 Fingerprint: EBA3 A106 7C93 FA07 8E15 3AC2 C367 A0F9 49BB 5886