mplayer will play the M4S2 streams.. It'll also play all the DIVX's, etc... I use it to play most of the files, and there is a mac port with a gui. Mplayer OS X is available at http://mplayerosx.sourceforge.net/ Matthew Matthew Barr Managing Partner Datalyte Consulting, LLC mailto:mbarr at datalyte.com > > Playing the file in VLC results in Stream 1 video codec M4S2 and > Stream 0 > Audio. >