How to use CDMAGE ?

[Formula1]

I'm wondering if someone on the forum may give some sort of guide on how to use CDmage please ? I tried opening a .mdf file with this program and it couldnt open it :( , please help :(

[Samurai]

http://filext.com/detaillist.php?extdetail=.mdf&Submit3=Go%21

One of several CD image formats that Alcohol 120% can mount. Alcohol 120% is used for media backup.