drag and drop files on this batch script to generate thumbnail grid, works on folders as well.

vid2thumbnail

@echo off

echo GOING TO PROCESS:
@echo %*

echo location of movie thumbnail http://moviethumbnail.sourceforge.net/
set MTN=M:\bin\mtn\mtn.exe
echo %MTN%

echo output folder
set OUTDIR=m:\thumbDump
echo %OUTDIR%

@pause

pushd %~dp0
if [%1]==[] goto :eof

:loop
  :: see usage at http://moviethumbnail.sourceforge.net/usage.en.html
  M:\bin\mtn\mtn.exe %1 -c 8 -r 6 -w 1800 -b 80 -W -P -z -O %OUTDIR%
  shift
  if not [%1]==[] goto loop
  
:eof

pause