it used to be a hyphen, between dvd-rw, and now they started saying dvd+rw which happens to be dvd-ram will there be a dvd+ram 
No DVD-RW (DVD-R) and DVD+RW (DVD+R) are two competing formats.
(One was Phillips and one was Soney IIRC)
Although most DVD drives can read both formats, burners can generally only burn one type (newer drives tend to be DVD-/+R).
DVD RAM is a totally different format altogether.
Similar probles are occurign with the new Blue Lazer media.
Soney with it's Blu-Ray and A consortium with DVD-Hires.
