cdrecord problems

["Vegard Lundby Rekaa" <vegardlr@student.matnat.uio.no>]

When trying to burn CD's, the process seems to complete without errors
(using k3b, cdrecord commandline or xcdroast), but if I try to check
md5sum, I get the error message that the md5sum-information is not
readable.md5sum (see outout below).

"
feil ved handsaming av /dev/cdrw: mislukkast i buffer_read(fd): mdfil:
Inn/ut-feil
"

And an effort to translate to english:

"
error comparing /dev/cdrw: non-succesfull in buffer_read(fd): mdfile:
I/O-error
"

The burned CD is mountable, readable, but in the case of burning Knoppix,
the CD will not boot properly.

CDRW device: Lite-On LTR48126S

General system info:
  Debian Sarge GNU/Linux
  Kernel Image 2.4.27-1-386

Cheers, Vegard