i want to buy the blackberry playbook, but i want to know if it can play .mkv files with embedded subtitles (soft subs). a god player is mvideoplayer, but it's for android, but since playbook OS 2.0, you can put android apps on playbook. can the playbook play videos in.mkv and subtitles? if not with mvideoplayer, then with what? (i tried SRT player. it wont works)