What do do when neither cdrecord/burncd work for me anymore?

[Petr Janda]

elevator# burncd -f /dev/acd0c data plan9.iso fixate
next writeable LBA 0
writing from file plan9.iso size 258006 KB
written this track 1120 KB (0%) total 1120 KB
only wrote -1 of 32768 bytes err=16
fixating CD, please wait..

elevator# cdrecord --scanbus
Cdrecord 2.00.3 (--) Copyright (C) 1995-2002 Jörg Schilling
cdrecord: No local SCSI transport implementation for this architecture.
Whats wrong? Im not using CS.

Petr