No sound!

[nosy]

I have a very strange problem! I have Movies that are in divx, xvid etc. I was able to watch them with sound, and there was no problem. Now i have Bsplayer because everbody says its so good. Now the problem is that i wanted to watch a movie with bsplayer, but it occupied an error. Then i deinstalled my nimo codec pack, and wanted to install it again (i still have divx codec). But bevor i did this i tried to watch the film and it worked, but without sound. Just divx, xvid etc. movies dont have sound, video files like avi still have sound so what should i do? Should i download the codec pack again, or another? Please help!

sry for bad english