[Dean Brocklehurst]

Hi Terry, I had the same problem. I was given an MP4 file from a client who wanted some voice over adding to it simply for web use. FCP would allow to import but would shut down as soon as I tried to drag onto the timeline.

i’m aware the MP4 isn’t an edit format but found it sometimes worked in the past. MPeg Streamclip wouldn’t export, iMovie wouldn’t import, Compressor wouldn’t recognise.

heres what seemed to work

Quicktime allowed me to export to a .mov file but FCP still wouldn’t accept this, however Mpeg streamclip does. So once exported through quicktime player re-export again through mpeg stream clip to the file format you want. FCP then accepts this file.

My video is only needed for web use but I haven’t noticed any drop in quality but will keep you posted if any issues occur once finished