Yep that was the problem, the profile was listed as BDP-sx90 instead of sx70, I changed it back to sx70 and MKV's are playing fine now. Thank you for your help!
On a slightly unrelated note I'm kind of disappointed to see that subtitles still aren't working. I'm aware of the issue with subtitles on the s370 (
viewtopic.php?f=11&t=7307) but
"This version is mostly focused on bringing full subtitles support to all the devices. It brings support for different subtitles formats as well as delivery methods (hardsubs, softsubs)." seems to imply that those issues have been fixed. I've enabled subtitle support in the settings is there anything else that I need to do to get them working or are they still unsupported?
Either way, all that really matters is my MKV files are playing, thanks again for your reply
