ZaraRadio is a radio-automation program, which makes playing commercials and elements during a broadcast extremely easy. Users can build a playlist before a show and then play individual elements, or complete commercial breaks, by pressing one button.
From the website:
Random music styles, fades and automatic overlaps between songs based on sound level, DTMF tones detection without additional hardware, remote control through the parallel port, a complete events system, four aux players and handling up to six sound cards simultaneously are some of the features that have made it a very popular solution in lots of stations around the world.
For more information, and to download, click here.