Using DVD for backups?

[Ivan Fetch]

Hello,
   I'd like to start using a DVD drive for backups on a FreeBSD
5.0-Release machine.  I'm curious whether others out there already do
this, and have particular recommendations for DVD drives known to work?
My hope was that I could use the "IDE SCSI emulation" pat of the cam
driver and use cdrecord with the DVD drive as well.

Thanks in advance for your time and assistants,
Ivan Fetch.