When cdrecord gets to the end of the third or fourth track, the computer locks up hard enough to require the power switch. All of my kernel* packages are version 2.2.16-22, except kernelcfg-0.6-9 and kernel-headers-2.4.0-0.26. My SCSI card is an Adaptec APA-1460 (PCMCIA, in case they reused that number...) I reinstalled cdrecord 1.8-2 from the 6.2 install disk, and the problem went away.