I just downloaded the movie Battle Royale, but it was a format I'd never seen before, mkv. So I researched it and found out it requires a codec. I downloaded the codec and the movie worked fine, so I assumed all was well. This morning I tried to play a .wmv file and got the "Windows Media Player has encountered a problem and needs to close. We are sorry for the inconvenience" message. I tried an asf file and that didn't work either, but all other types of movie files work. So I reset the computer, but that didn't solve the problem(duh). However, I have found that these file types still work on Media Player Classic. Can anyone give me an idea of why these files are working on MPC but not with WMP10? Would getting rid of the codec possibly work?