jit.qt.movie export

I have a pretty simple problem, i think… I am trying to export from jit.qt.movie to h264. jit.vcr (essential to the project) doesn’t let me export to h264, so I am importing a moving jpeg back into jit.qt.movie to export again (at the end of the process I am deleting the vcr export using shell).

jit.qt.movie is giving me an "invalid exporter index (valid:0 -0)" message. Anyone know how to work around this? Furthermore, is there an alternative to jit.vcr? It has been a bit inconsistent.

Any help would be greatly appreciated!