sdiddy, I've been using a combination of "Tonido" app - to download .avi files from my pc to my tablet wirelessly, as well as the "MoboPlayer" app to play them with no issues. Make sure that you download the one that just says MoboPlayer. There's no need to install the ones labeled "codec". As I mentioned, I haven't had any issues playing .avi files or most other file types using MoboPlayer. Now as far as how to actually receive/download the .avi files or other movies to your pc, I'm not going to go into how to do that. Hope this helps.