I think that you may be confusing dual layer with two sided. Two sided media has been available for some time and can be recorded on with todays burners. An example of these disks is at: http://www.cwol.com/dvd-burners/dvd-r9.4g1xds-5.htm Dual layer is an upcoming technology that will allow twice the amount of data on one side, this is common on commercially pressed DVD disks. I am sure that when these burners and disks come out we will be exposed to a new set of compatibility problems with set-top players. Gerhard Kuhn On Jan 19, 2004, at 1:31 PM, Ronald Woodland wrote: > Interesting. In contrast to these comments, I have had just the > opposite experience. The DVDs that I burn on my mac, using either > iDVD or DVD Studio Pro, work perfectly everywhere. I have yet to find > a DVD player in which they will not play, older players included. I > don't understand what the concern is. > > That said, the next generation of burners are beginning to appear. > These will burn both sides and increase the capacity to almost 9 GB, > with commercial software of course. From what I've read, the > dual-sided DVDs will require the DVD+R format to work, but I'm not > sure of that. I haven't looked into this because I haven't needed it > yet, but I expect Apple to support these drives too. I know that the > Superdrive in the G5 in my office has the ability to burn DVD+R > format, but the software from Apple does not allow that yet. Anyone > have more insight on this? Specifically, what value is DVD+R over the > DVD-R format for single-sided DVDs. > > ------------------------------------------------- > Ronald Woodland -- St. George, Utah 84770 > -------------------------------------------------