Are you using DVD Player 4.6? It was a separate download from Apple. URL is: http://www.apple.com/support/downloads/dvdplayer46.html There were a number of articles on MacFixit concerning the DVD Player problem. See: http://www.macfixit.com/article.php?story=20050511170344560&query=DVD+Player Mike >Is anyone else aware of a problem with the DVD player app in their >OSX10.4.1? The Player app for OS9.2.2 is working reasonably well but >the OSX has a terrible video problem. Lots of pixelation...big >chunkey blocks mostly green that makes the app useless. Is there a >OM player I could use with OSX10.4.1 that isnt too expensive? My >newly installed DVR-109 needs a burn test of some sort but I don't >have anything available to burn. Any suggestions? > >Thanks >Tom -- Almost never pointless.