Thanks I'll give that a go!
Any ideas why I can only play certain m2ts files?
If they are VC-1i then you will have hard times to make them working - MPC-HC/FFDShow decoder doesnot support VC-1i...
Is my only choice then to purchase PowerDVD9 or TMT3?
Well, you will be able to play VC-1i by OS intergrated MS decoder - make sure you enable it START - SAF - MS DMO - enable. But no DXVA will be in use.
If you have unlocked SAF, you can try to setup PDVD video decoder for h.264...
Czech Republic