damaged videos

I never heard of anyone successfully re-stiching broken, corrupted video files back together.
getting all the video packets back in order would simply be impossible to automate, how would a program know what scene followed what.
each frame doesn't have a date/time stamp.
and then as to the overlaying audio track, left and right channels if stereo, and it is bigger the Ben Hur.

and the grave robbing data recovery program used may not have had the file allocation table available to sequentially hunt down the file clusters in any sort of order. it would be an absolute mess.

that's why we backup!

but maybe others can offer some assistance.

Thread closed due to lack of any feedback from the OP.