(2007-09-14) Digital Juice announced today that it is adding four new titles to its royalty-free StackTraxx™ music library. The four new titles will bring the rapidly expanding production music collection to thirty-six available volumes covering an array of different styles, themes, and genres including Top Forty sounds and radio influenced mixes, a European tour through the Old Country and beyond, modern Corporate music covering everything from the board room to the break room, and a Retro infused blast of disco and punk.