squiggle, I don't think there's much of a reason to worry about AAC decoding too much. Most of the DivX Plus certified devices would have had to support AC3/DTS anyway for their other functions. Any device that has this support but doesn't play these surround formats wouldn't sell anyway. When (not if) the PS3 supports MKV, its gonna play these audio formats.
On the PC, as long as DivX 7 is installed, your regular DirectShow player (Windows Media Player, etc) should be able to playback the MKV properly, as Windows already has a AC3/DTS decoder for its built-in DVD playback, and if not, AC3Filter is free. DivX Player isn't much of a player in and of itself anyway.
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squiggle, I don't think there's much of a reason to worry about AAC decoding too much. Most of the DivX Plus certified devices would have had to support AC3/DTS anyway for their other functions. Any device that has this support but doesn't play these surround formats wouldn't sell anyway. When (not if) the PS3 supports MKV, its gonna play these audio formats.
On the PC, as long as DivX 7 is installed, your regular DirectShow player (Windows Media Player, etc) should be able to playback the MKV properly, as Windows already has a AC3/DTS decoder for its built-in DVD playback, and if not, AC3Filter is free. DivX Player isn't much of a player in and of itself anyway.