I'm running mlt 4.10 and ffmpeg-0.5-6.20100116svn from rpmfusion - that's about as current as you can get without pulling development versions (I've done that too but not run openshot against the result yet).
I'm running mlt 4.10 and ffmpeg- 0.5-6.20100116s vn from rpmfusion - that's about as current as you can get without pulling development versions (I've done that too but not run openshot against the result yet).