I've been tuning DRD tunes for about a year now and all has been working fine until today when I started it up. It read invalid SD card and I have no control over RT or anything like that. I tried unplugging and reseating the card and all that. I even bought a new SD card and pulled the files off the old one and put it on the new card and still reads the same thing. The important thing isn't my stock files are definitely still on there. Please help I just want all the functionality of my tuner back. If someone could get me in contact with ray from DRD or help me out it would be greatly appreciated. Thanks