w910i wma yes or no?!?

ok i'm gonna get a w910i but only if it has mega bass AND wma support. according to some site, it has wma support. others say issues. and finally, some say no compatibility. this is just stupid. can someone who has this phone gimme an answer please. when i bought a k800i, the manual said nothing about wma support and said it supported pretty much all other major formats. i copied in a wma track and played it ever since with no problems. i don't know what's going on but for a company not to advertise something like this must mean they're in some sort of format war. i'm guessing microsft wma and sony aac are in competition. i'm guessing k800i is older so if that supports wma then so will w910i but with improvements.