here is a little thing I did one time just messing around..I had used the windows encoder to record some lightning footage out my window. Then encoder saved it (of course) to wmv format. At that time I was using one of those ATI all-in-wonder cards..and when I tried to play it back in the ATI player..it refused coz it was .wmv. anyhow out of curiosity I renamed the file extension from .wmv to .avi, and the ATI player accepted it, and played it back. may not work in poser..but you can try it..never now :)