I'm using Win7 64bit which is up-to-date, Windows Media Player 12, Haali Media Splitter to read the MKV, FFDShow to decode and has DirectVobSub installed. I have an MKV of a film with various subtitles in the file. One of these will be selected in Haali, subs will be set to on in WMP12 but no joy. I have checked the file in VLC player which produces the subs OK, but I really want it to work in WMP. Any ideas would be greatly appreciated.