You can do it all in nero mate(if its 5.1). Put the full mix into the files to burn part, then press edit and the wave form will come up. Place your markers where u want slits to be and press split. Then exit the editor and it will ask if you want to split the tracks, press yes and it will split it up. Make sure before u burn that in the burn options u set the pause to 0 seconds otherwise u will get a gap between each tune.