I have four applications: Record, wave pad, express burn, and switch. Mostly I use switch, but I 'm looking into the others. After about 2 weeks, I keep getting a pop-up that tells me that my trial of switch plus is about to expire. What is the difference between switch and switch plus? And another thing - I had trouble using it at all after that message came in. Have I lost ALL rights to use it unless I pay? It seemed like the program did not want to open any of my wave files to convert. Help.