We render animation via Legacy QuickTime and Preset QuickTime Move Animation. for huge files it crashes while it goes well for small files.
What is wrong?
There is no problem for MP4 format and Preset MP4 H.264-acc.
The reason that we are using quicktime is the quality of the sound because via MP4 H.264-acc sound's bitrate is 96 and sound's quality goes down.
Overally, The issue is the sound's bitrate and can be solved by fixing the crash or avoiding the bitrate reduction (From windows default rendering)
Enviroment details:
Moho 12.2
Quicktime 7.7.9
Windows 8.1
System Details (intel core i7, 16 GB RAM, Geforce Gt730, )
Error details:

