"Can I dd an .img file straight to a cd-burner?"
No.
"If so are there any special commands other than: dd if=xx.img of=/dev/xxx"
Yes. Use mkisofs to create an .iso and then feed the .iso file created by mkisofs to cdrecord to do the burn. See:
man mkisofs
man cdrecord
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Be prepared. Create a LifeBoat CD.
http://users.rcn.com/srstites/LifeBo...home.page.html
Steve Stites