I have spent weeks creating a wlmp project from Mp4 video, jpeg images and Mp3 audio files.

1022 pieces I have edited!!

Am able to watch project in WLMM although had frequent exclamation marks which went away after closing and reopening program.

When I go to save movie for high definition display it does about 5% over approx. 1/2 hour and then gives me error 0xC945002D !!!!

I have been reading on net that Mp4's and Mp3's are not compatible. If this is the case, why does it let you load into project??

What can I do so I don't have to start again.