converting vidéo with ffmpeg for vcd use

[maximerobin]

I'm trying to convert a video I made in Final Cut Pro. I export it in "final cut pro movie" (which if I understand right is a quicktime movie in dv video codec). Then I try to convert that file in ffmpeg with the VCD preset (I tried the two ones).
I always get this error when muxing (I think it's the muxing part):
**ERROR: [mplex] Too many frame drops -exiting

It's weird because I already converted some of my video that way and it worked great. You can see that I' m really an amateur when it comes to converting and I don't understand much past the presets.

(the zip is the log of the process and a screenshot of ffmpeg)
(edit: you can get the file here: www.erobote.com/error_ffmpeg.zip )

[major]

Try to use the Mux tool to mux "as XVCD" the m1v and mp2 files which you should still have.

[maximerobin]

failed too