OK, just

On basic level I like it. However, when I try and use some of the tools or skip forward in a video, the audio track goes out of sync. I dont think the speed adjustment feature is intended to compensate for bugs, rather for compensation on faulty downloaded videos. Also, with some of those, I get a white screen when switching to/from Full Screen.

The developers site has a more current version than the one offered here and, despite requirements for OS 10.7+, it does work on OS 10.6

Pifco about MPlayerX, v1.0.14