Why not trial out with DVD-RW "if" your dvd player supports that format? Good for testing & deciding whether you wish to keep it.

I do all on dvd rw first, then decide whether I wish to keep or not at some later stage.

Alternatively, if your player supports divx/mpeg 4 then you could burn as that format or as a data disk with those files on if they are already in that format. Amazing how much you can fit on one dvd. Other advantage is no more conversion if already in that format (loss of quality each time you convert). Of course disadvantage is there's no index's or menus other than base menu similar to an mp3 disk.