try
www.download.com and search for a wma converter. But look at user reviews so you know what other people think of the product. It is helpful. They tell you if it is a good program or if it is bad. Also they have free wma converters. Also if you don't want to by an add on to go over the 20 mp3 limit try to burn like a certain amount of songs on one disk. But I don't see why WMP is doing that. You can also find a different program on download.com that can burn cds.