tonaiden, i've gotten federer-isner match from t3 by your imformation. thanks.
fortunately, i've found the way to play this file.
Media Player Classics can work on this file, what you need to do is just waiting for buffering after you open it in MPC, maybe 1 or 2 minutes.
I found some other players can play it just like MPC, after waiting for buffering.
another hint from me is that MKV Splitter should be Gabest.
There are some corrupted segments in the first one minute, don't worry, the rest will be perfect.
BTW, waiting for nadal-murray match in US open 2008:). thank you.