MVToolNixGUI errors Help

[BasalGanglia]

Ive been using MVToolNixGUI for some time without any problems. Im removing the non english audio by unticking it and pressing the 'Start Muxing' button, which for the first few files worked fine. However it now flashes errors and crashes. It doesn't say what the errors are and can't seem to find a way to find out.

Any ideas or suggestions for another program that will do the same job.

Thanks in advance
James

[BasalGanglia]

Seem to have solved the problem. Even though I had over 100GB of free space, I moved some files onto a different drive freeing up loads of space and the problem seems to have gone away. Maybe the program requires a minimum amount of free space to work