Created and tested with =>
Name : bc
Version : 1.06-8
URL : http://www.gnu.org/software/bc/
Name : ffmpeg
Version : 20120127-3
URL : http://ffmpeg.org/
Name : imagemagick
Version : 6.7.6.0-1
URL : http://www.imagemagick.org/
Name : mplayer
Version : 34799-1
URL : http://www.mplayerhq.hu/
./video2nfo.sh any_video_type.avi
=> Creates VIDEO_2_NFO.png
Updates can be requested under the issues section.