Just experimenting with my recently purchased Rio car and already running out of room on the player. So in the meantime whilst I contemplate getting another hard drive for the rio, I wanted to encode some albums (that I seldom listen to) into the WMA format using Audiograbber (I've tried it on 160kb/s version 2 and 8). However trying to drag the resultant .wma file onto emplode, it reports that it's not a valid media file.