DVDPlaybackUpdate4.6.1addressesadiscvalidationissuesomeusersmayencounterwhenattemptingtoplayadiscforthefirsttimewithDVDPlayer4.6.ThisupdateisrecommendedforallusersofDVDPlayer4.6.Requirements:G3,G4,orG5processor(G5requiredforHDplayback),MacOSX10.4orlater