In certain videos any attempt to jump back 10 seconds jumps back less than 1 second. I can jump forward just fine in any increment, but can only jump backward by 1 minute or more.

I remember reading something about this a while back (something about mplayer not being able to skip back past an iframe, or something like that), but several web searches didn't turn up any relevant results, and it's long since been cleared from my browsers history.

Has this been fixed yet, or can somebody point me to the explanation so I can try to solve it myself (maybe by re-encoding the videos or something).