If we only speak of DivX then there are 2(3) chipsets with full support of all features, the Mediatek 1389, the Zoran Vaddis 7 chipset and the one used in Sonys new divx players (but i think its just uses a relabeled Mediatek) Currently no player can play Xvid+GMC, the Sony does not play Xvid at all. Brand-players with these chipsets are for example Philips 720SA,Yamaha 550,Pioneer 575 (Mediatek), Sony DVP-NS765P,DVP-LS785V,DVP-NS955 (Sony), Samsung 745,945,244 (Zoran) Biggest problem are the subtitles. Sony dont support them at all, Yamaha has pure white text, Philips black transparent border around white transparent text, Samsung a transparent black bar with white text. Dont know how the Pioneer look like. You should also have a look at the upcoming new Sigma chipset with may outperfom the others.