MPlayerOSX will play almost all 3ivx, DivX 3,4,5 and other codecs files.
trusted DOWNLOAD 7.6 MB FreeMPlayerOSX is binary distribution of MPlayer (The Movie Player for Linux) and comes with native GUI in MacOSX.
MPlayer has very good postprocessing. On every image in the movie is applied a filter to reduce square areas, which comes from codec's compression algorithm.
This software was checked for viruses and was found to be clean. Click here to see antivirus report.