I hope I havent asked this here before but I searched and didnt find anything and so...

What player can I use to watch incomplete anime files? I guess mostly avi but nowadays there are more and more or just about anything. I used to use a juiced up copy of Divx but I lost that a longtime ago and now almost all my stuff is legit. Anyway I cant believe what a problem I am having trying to view these files and so if anyone is watching incomplete files with a certain media player and knows what settings and all they have used I would really appreciate it, I have certain downloads where the trackers have changed and these things are like 90% all the way around and I cant watch one, boy is that aggravating!