well Wolf Jukebox should be the first program for jukebox machines made completely in flash, yep as you heard it, wolf jukebox has many more advantages than many other comercial products and software, the curious thing is that it allows you to play videos, images, ads, backgrounds and much more items...but see it by your self, it also has a site where to purchase it. Bu the features are these:

http://www.asb-labs.com/blog/?page_id=31 (spanish version)
http://www.asb-labs.com/blog/?page_id=20 (English Version)

hope you like it guys!