i shant get into detail but i burn ALOT of dvd's for friends/co workers. no one has ever brought one back due to non compatibility(or for any other reason) which is why i'm so confident in what i'm saying. if you have the manuals handy then great, check it out. but really you are %99.9 safe with DVD-R. i would have said %100 but apparently the poster above owns a machine that wont playback -R.

FYI-you will have to finalize DVD-R before playing it in another player. this is as simple as selecting the option through the burning process and it will be done automatically-takes about an extra 2 minutes.