Hello, I have a couple of questions. M3 DS Simply does work on the NDS Lite, right? With mircroSD card it can play roms, and play movies? I was aiming at the $40 cad without mircroSD, is there a site where they have a cheap price? Thanks in advance. p.s. there are gray and white m3 ds simply(S) ? Oh I forgot, the R4 and this are the same thing, so should I buy R4 then?