>Are there huge advantages to using >rewritable DVD's for backup? I would not try this for backup purposes as the UDF file system does not seem completely stable and I've already lost more work I "backed up" to RW than by any other means. RW, whether it is CD or DVD is not reliable, in my opinion. I do, however, create DVD-RWs for immediate viewing (to make sure the menus and buttons work, and the video quality is acceptable) before burning to a DVD-R.