I'd like to answer myself.
To verify video files, you can use ffmpeg.exe command line codec. You configure it to encode to
none format to
none output file. It will read the input and show some statistics, including concealed errors.
This is the commandline:
ffmpeg -v 5 -i MEDIAFILE.VOB -f null - 2> TEXTFILE.TXT
where MEDIAFILE.VOB equals the filename of the video to be checked (without spaces) and TEXTFILE.TXT is the output file with the statistics.