Alan, you misunderstood - when it comes to DVD+R incompatibilities with Macs, I'm referring to recording. Unless later models of the Pioneer drives allow it, AFAIK you cannot record a DVD+R disk in a Mac. As for compatibility on playback, I can't speak from personal experience, but it is my understanding that DVD-R disks can be played back on more drives than DVD+R disks. That does NOT mean that DVD+R disks can't be played on DVD players, just that you have to test first - which is true in any case of all the formats, there are no universals even for commercial recordings (two different copies of Monsters Inc, for example, froze at the same spot on my Pioneer player, though they worked on my other players). In any case, the balance between DVD-R and DVD+R compatibility may be shifting - the most recent updates on the DVD player list at http://www.dvdrhelp.com/dvdplayers.php seems to me to be showing more DVD+R players than a few months back. On Saturday, May 10, 2003, at 01:36 PM, Alan Cawson wrote: > Apologies - it was Peter Tattersall not Jim Asherman who wrote > >> In any case, DVD+R is incompatible with Macs, and my >> understanding is that a lot of consumer players won't read them >> either. > > And I replied: > > I have a Philips consumer DVD recorder which uses DVD+R and DVD+RW. > When > finalised the DVD+R discs will play happily in my iMAC. The DVD+RW > will > also play happily as they are finalised automatically in the recorder. > Likewise DVD-R discs burned on my iMAC using iDVD will play happily in > the Philips. > > Alan