AIKOUSHA What the hell is the point of this? There are at least 6 programs that do this directly, already.... for FREE! And there are about a thousand ways to do it using two free tools (which gets you past almost all tough issues with syncing and skipping frames, etc.
This is a worse idea than Popcorn...
Now, if this thing could FLAWLESSLY transcode any matroska file, into mpeg4 or avi, and burn subtitle streams, that would be worth slappin' down some hard earned cash (sorry, there is NO program or toolset that will do this for the Mac... especially if the x264 codec is involved. I've converted a few recently but they all took several days total and unless more than 4 steps (on video) were involved, it never worked... anybody seen horizontal video smearing? Dragging audio, super-fast video, tiny subtitles?)
(Version 1.0)