Tag 85???

For months I have been downloading AVI files and using DivX to view them. But to my surprise, when I tried to watch one today, it said that there was an error, but when I watched them the day before, the files were working perfectly. This is the error message, the way it appears when I try to watch a file on DivX:

"The video file you are opening includes audio data that is not recognized by the DivX Player.

The file contains the following type of data:

Audio data: Tag 85

You may need to install new audio codec on your computer to listen to."

As soon as I got that message, I quickly searched for a way to fix this. I downloaded the codec which is called Radium, but it does not help me. I have been to countless sites looking for help. I still get the same error message every single time. Somebody, please help me.

Another problem is that music I have downloaded (MP3s) doesn't play either. When I click on them in Limewire, nothing hapens. Please, I need this Tag 85 or whatever codec I need so I can continue watching my files. The reason why the Audio works one day and malfunctions the next day is beyond me. Thank you.