You can download the free DivX codec from the DivX web site. As JFreak said, QuickTime plays MPEG 4 out of the box. This new format is based on QuickTime. AAC, MPEG 4's audio format, is the preferred format of iTunes and is the format of songs on the iTMS.Originally posted by robins2001
i have quicktime 6.5 pro, just wondering if it will play mpeg4 video
thanks
tell application "Quicktime"
activate
present movie
end tell