iSquint:
http://www.isquint.org - might work, can't remember when I last used it.
Or VLC:
http://www.videolan.org/ - might take a couple of go's to get the settings you want but it works.
Or Perian:
http://www.perian.org/ - adds a load of codecs for QT. ^^
About
Perian aims to provide a single package for all your playback needs. It is a collection of QuickTime components incorporating several libraries:
• libavcodec, from the ffmpeg project, along with code from the old FFusion component:
• MS-MPEG4 v1 & v2
• DivX
• 3ivx
• H.264
• Flash Video
• Flash Screen Video
• VP6
• H263I
• VP3
• HuffYUV and ffvhuff
• Indeo 1 & 2
• MPEG-1 & 2 Video (in supported formats)
• Fraps (up to v4)
• Windows Media Audio v1 & v2
• Flash ADPCM
• Xiph Vorbis (in Matroska)
• MPEG Layer I and II audio
• DTS Coherent Acoustics audio
• Snow wavelet video
• DosBox video
• Nellymoser ASAO audio
• libavformat, from the ffmpeg project. along with AVIImporter.component:
• AVI file format
• FLV file format
• NUV file format
• libmatroska, along with matroska-qt.component:
• MKV file format
• Subtitles:
• (Advanced) SubStation Alpha
• SRT
• SAMI
• VobSub
• liba52, via A52Codec:
• AC3 audio
Enjoy!
