NoTurning wrote on 2/16/2009, 8:59 AM
Are you certain you're using .MP3? It's sounds obvious but what some consider .MP3 are not. For example - iTunes songs generally are not and many others as well. Confirm first they are actually .MP3

Next get a free program like Audacity and load them there - do they play ok? Export them and try Magix again. Are they ok?