Just came across a new player i've been using the past few weeks, seems pretty good, lightweight (even lighter than MPC). bomi player
Yes File Association is giving me somke hard times, I'm not able to associate bomi to anything, and I just found the subtitle search engine, yay let's see how well it works. Edit: Actually, File Association seems to work, but for not mp4 files, mkv on the other hand got properly associated