mediainfo

MediaInfo

 0.7.54
Free (Open Source)   
1

All the necessary codecs for your videos and audios with this program. You will not have any more error messages.

divx

DivX

 10.2
Free   
1

The most famous codec in our Mac; Now, we will be able to watch all our videos without format problems.

3ivx

3ivx

 4.505
Free   
1

Better quality and better compression; your movies always ready to be watched in the best quality.

perian

Perian

 1.2.3
Free   
1

Complete pack of codecs with which youn will be able to play all your files in QuickTime without format problems.

x264 quicktime codec
Free (Open Source)   
1

Here, you have the evolution of the MPEG-4 codec. Try it now!