vids decompressor
 

The movies download and I get sound. However, it tells me that the "video is not available cannot find vids:divx decompressor" or "cannot find vids:mp43 decompressor." The error only occurs with certain movies. I apologize if this question has been addressed but I couldn't find it.

Have a look at the sticky thread at the top of this section. The answers are there. Also recommended to get VLC as a backup player. ;)