He wants to burn discs which can be read by DVD players. This means DVD-R ONLY. Not DVD-RAM, not DVD+R, not DVD-RW. You also need good software to prepare the data in a format the DVD player can read, like DVD Studio Pro.
Anything other than DVD-R is pretty much useless anyway. Optical media is too slow to be useful for backing up data and for $5-10 per 4.7Gig it isn't cheap either. Not that 4.7Gig is a lot to begin with, that's only 90mins of compressed video. Pretty pathetic.
