I got The Rio 600 for christmas and imediatly installed the software and starting putting songs on my rio at first i could only 5-7 songs. When I was looking in the options menu when you go to portable section, set it the transcode bit rate to 64kBits/s and it reduces the space dramatically i'm now able to fit 17-21 songs and it sounds just like if you heard it on a FM radio.The only problem I had was with the Rio Audio Manager, Constantly not detecting the rio and the headphones broke the first week i had it. Also buttons are to small you try to stop and it skips tracks and the accesorries are waay to expensive its [$] dollars for only a 32Mb memory backpack and [$] for a faceplate.