I just purchased a new Mac. Got tired of all the maintenance required for the PCs. I downloaded the Mac version of Express Scribe, started it, and then tried to load some WMA files into it. WMA is the native format for my backup digital recorder. WMA files work very, very well in Express Scribe on my PC, but it either crashes on the Mac when I try to load the WMA files or it does nothing at all. Do I need to download and install a codec or something? If so, where do I get it?