I'd suggest -R, it tends to be more compatible.
Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, and Blitzen with Santa plus Rudolf. -- Edel Alon http://www.edelalon.com
r2+r2 = 2r2
+R is for just audio -R is for audio and video
Good question, but plus CD doesn't exist. It does with regard to DVD.
There is no such thing as a CD+R.