Remember when RealNetworks said it wasn't giving up on RealDVD, that it would fight the good fight and appeal the August ruling finding its DVD copying application wasn't quite legal. Well, a lot of things can change in five months and now it seems Real is caving in to the inevitable crush of the movie industry, setting the lawsuit filed by the MPAA for $4.5 million and instantly turning existing copies of RealDVD into collectors items. (Hope you kept those boxes in mi