http://tinyurl.com/9cy8bfh

Dr Drum * Pc and Mac software for making music
The program is compatible with PC and Mac and will run on both Windows and OSX, is so highly sophisticated yet incredibly simple to understand and play with and the creators are so confident it its capabilities that if you aren’t creating great beats within 60-days of purchase that they will give you a full, no quibble refund – can’t ask for more than that.

http://tinyurl.com/9cy8bfh