Creating a mini image
 

I just got the urge to play some War III: TFT and went up to get the DVD upstairs. Then I played some Theme Park World. And now I wanted to play some DOTA with War III again, and had to get the disc again again.
I use a mini disc for other games, but I got help to create those. I don't know how to make one myself.

Can I use my Nero, AnyDVD, DVDShrink or any other program to create these working mini images?
Thanks :)

(Wrong forum, moved.)

The forum FAQ links to a few guides on creating backups and mini/maxi/full images.