A mini image is really not hard to create, all you need is the 'original' disc.
Using a program like Alcohol 120, set it so it does not delete a 'partial' image, and then copy the disc like normal but 'cancel' the burn after a few seconds, roughly just before or when the image reaches 1%.
Experimenting a little with the time to copy and the completion of the copy will yield you quite a small image which can be mounted into a virtual drive and will act like the original disc when it comes to playing the game. A mini image only copies the Protection, it does not copy actual game files so obviously the mini image can not be used to install the game.
