All you need to do for your CD burner is turn on SCSI emulation for it. Do this by passing the option hdX=ide-scsi to the kernel with the GRUB or LILO, obviously using the proper device location. It is likely this has already been done for you though, type 'cat /proc/cmdline' in a console window to check.
In that case you would just have to use your CD burning software of choice and point it to device 0,0,0 (that is how SCSI is addressed)
As for the dvdburner, some tomfoolery/black magic is probably be required to get that to work. I suggest you hit google (search engine, not forum member
)