This version now has a GUI and the option to backup the files as well as keep the original file data in the generate NFO file.

I have attached the AutoIT source code if you want to take it and modify it to your needs. This is released under creative commons licences:

http://creativecommons.org/licenses/by-sa/3.0/

Example images: 

Attachment	Size	Hits	Last download
YAMJ_Convert_NFO v0.3.rar	260.93 KB	51	3 days 6 hours ago
YAMJ_Convert_NFO.au3	12.12 KB	29	2 days 21 hours ago