How to transcode VGZ video to AVI (open recording from outdoor video surveillance)?

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There was an accident. There were no car DVRs. The office nearby filmed what was happening on the cameras of outdoor video surveillance. We uploaded 2 videos of 5 minutes each from two cameras. Both files are in VGZ size. How to open (view) such a video? Ideally, how to transcode to a more common format like AVI, MP4, etc.
I haven’t come across this, so I’ll give you a detailed answer, like: download this, found it here, select item number 3.
I have WIN7(x64) and UBUNTU(15.10).
Google Drive Link: https://drive.google.com/folderview?id=0ByemfmYm71...

Answer 1

please read
chem-otkrit.ru/format/vgz
www.file-extension.info/ru/format/vgz
Not only an answer, but a guide to action, you need to find out what kind of DVR was there and there is specialized playback software on the manufacturer's website .
The fact is that it is impossible to recode without quality loss, and the quality of video cameras in the proper majority leaves much to be desired.
Just in case, you will have to clone (precisely clone) your disks, and then you can attach the original to the case, otherwise often such a thing docks deteriorate at a crucial moment.
In court, you will come with a laptop, insert a disk and let it look through.
HERE THERE IS THE RELATED PLAYER www.practical-answer.com/download.htmYOUR FILES ARE DAMAGED