Hmmm.
There's currently a 16.95gb 1080i HDTV version of the Matrix on rutracker that I haven't seen anyone mention here. The 16:9 presentation is clearly not the BD colour timing, and interestingly has a six channel 1510 kbps DTS English audio track (along with several AC3 Russian tracks), whose source I'm not aware of.
It looks pretty good, though some detail has been lost vs. the BD.