Hehe - JSR, I believe Dantrag is asking for the differences between the three formats - I own all three.
+R/RW has a higher compatibility rate on set top boxes than -
You will find that a +R/RW usually won't play on any drive that can read/write a -RW except set top boxes.
-R/RW has a lower compatibility rate on set top boxes and the discs usually won't read in anything that can read/write in +R/RW drives.
The biggest exception to this is a DVD +/- R/RW drive - those that can burn both, of course, can read both. I think this is the way to go. (I don't have one of these, but my next drive will be)
My DVD-RAM drive uses this funky cartridge thing - not sure if they are all that way or if mine is just that old. Also, the media is pretty expensive for these suckers.
The media prices for +/- R/RW fluctuate constantly: sometimes + is more expensive and sometimes - is, but at least they are both constantly falling. Hope that helps.
LNCPapa