On a system with a SCSI DVD-ROM drive and an IDE CD-RW drive I try to burn from the DVD-ROM drive directly to the CD-RW drive. With no luck. I am trying to do the same thing that works on other systems with the same setup: find the the burner drive with 'cdrecord -scanbus' and insert it into the line cdrecord -v [burner-drive] speed=1 -isosize [source-drive] On this system it becomes cdrecord -v dev=2,0,0 speed=1 -isosize /dev/sr0 I cannot do this as a regular user on this system. The message is: david@dt:~> cdrecord -v speed=4 dev=2,0 -isosize /dev/sr0 Cdrecord 1.11a05 (i686-suse-linux) Copyright (C) 1995-2001 Jörg Schilling TOC Type: 1 = CD-ROM cdrecord: Operation not permitted. WARNING: Cannot do mlockall(2). cdrecord: WARNING: This causes a high risk for buffer underruns. cdrecord: Operation not permitted. WARNING: Cannot set RR-scheduler cdrecord: Permission denied. WARNING: Cannot set priority using setpriority(). cdrecord: WARNING: This causes a high risk for buffer underruns. cdrecord: Operation not permitted. shmctl failed to lock shared memory segment david@dt:~> If I su to root and issue the same command, the usual startup-messages appear, but no real burning takes place when it should start. I just see this message: Waiting for reader process to fill input buffer... And the source-drive spins up and down forever. Burning from ISO-images to the CD-RW drive works fine. What could the problem be? TIA Best regards, David List