Gardner Byron said: >Can somebody please tell me what I need to do to play avi files on QT >version 7? See: http://www.lordofthecows.com/avi_qt.php which breaks down the situation nicely, and provides links to what you need. You can play almost any AVI under OS X with: VideoLan Client: http://www.videolan.org/ http://www.videolan.org/vlc/download-macosx.html or MPlayer http://mplayerosx.sourceforge.net/ http://prdownloads.sourceforge.net/mplayerosx/MplayerOSXB8r4.zip?download http://easynews.dl.sourceforge.net/sourceforge/mplayerosx/MplayerOSXB8r4.zi p Or, with the proper codecs installed, QuickTime will play just about every type of AVI file. An Apple KnowledgeBase article entitled "QuickTime : About Playing .AVI Files" can be found at <http://docs.info.apple.com/article.html?artnum=93199> . The problem is that there are a number of different types of AVI files and you need to have the AVI codec installed that works with the AVI file that you want to play. Randy B. Singer Co-Author of: The Macintosh Bible (4th, 5th and 6th editions) Routine OS X Maintenance and Generic Troubleshooting http://www.macattorney.com/ts.html