Virtual Reality Sound VR3 CD Player w/ USB and Scan Disk Inputs "lexar sd card problems" Questions

Lexar which was 512 mb, and that worked. So then i put in a Toshiba sd card which was 2 gb also and that one didnt work either. What should I do to make them work?? Keith have you tried formatting the

...SD/USB options. Per the manual I should be able to just plug the 1 gig Lexar JumpDrive with the Power To Go software on it, into the slot on the radio and songs begin to play. That's not happening. I ...