I seem to be having a similar issue when rendering HD MP4 projects.
Video source(s) is a capture using Registerd FRAPS 3.2.3
Capture details:
ps this is not the first capture/edit process I have done
When rendering MP4 I get the same message/dump file to send to the 'BLACK HOLE' COREL with no response!
I can render/play the same video when generated WMV format 720/1080 HD no problems.
If I then us my registered divx converter to compress the same (WMV) video that crashed when trying to convert to HD Mp4 in VS then appears to change to a 4:3 ratio and crops my 16:9 WMV X3 generated file?
I can normally compress the X3 generated HD MP4 file generated with X3 using DIVX converter to HD720 for approx 50% compression!
This appears to be a RANDOM issue as I can occasionaly render MP4 using other FRAP captured video.
My feeling is it is 'SOMETHING' generated in the project file prior to generating output video file that may be causing the issue?
pps VS X3 is as up to date as possible with patches.