Backup HD with CDR?

[Wonder]

I use PowerQuest Drive Image to back up my drive. It doesn't back up directly to CDR or CDRW yet, but it is designed so that you can split the image up into 650mb segments to put on CD. You save the image to another hd or another partition and then move it to CD. It will also compress your data and backs up very quickly.

[dh]

I'm new to the CDR side of things, just picked up a 2x6 Memerorex (not the best around, but for $149 WTF)
What I want to do is use it to backup my HD,
6.4gb (fat32). Now since the cd media is only
650mb what is the best way to do this, and what software is out there that can help me.
Thanks for your time.......