Perian - The swiss-army knife of QuickTime® components 

Perian enables QuickTime application support for additional Media Types: AVI, FLV, and MKV file formats MS-MPEG4 v1 & v2, DivX, 3ivX, H.264, FLV1, FSV1, VP6, H263I, VP3, HuffYUV, FFVHuff, MPEG1 & MPEG2 ... Video, Fraps, Windows Media Audio v1 & v2, Flash ADPCM, Xiph Vorbis (in Matroska), MPEG Layer II Audio AVI support for: AAC, AC3 Audio, H.264, MPEG4, and VBR MP3 Subtitle support for SSA and SRT Installation and Removal: Please consider removing obsolete QuickTime Components: FFusion, Xvid Delegate, 3ivX, DivX, XviD, msmpeg4v1, msmpeg4v2, AviImporter, EX_M4S2, and Casio AVI Importer How do I remove Perian? Open the System Preferences. Select the Perian pane and 'Remove.' Now 'Show All' preference panes, control-click the Perian pane and 'Remove "Perian" Preference Pane.' Frequently Asked Questions: Why does it take so long for MKV to load? The entire movie must be loaded into QuickTime. Problems and Feature Requests: File a ticket for an enhancement request or bug fix. Join the mailing i   [More...] [Less...]