I've been using the SD adapter that came with my flash card to transfer files onto the Micro SD. The problem is if I use the Micro SD USB drive that came with the R4DS it renders the card corrupted it seems. I've only used it three times and every single time I tried the USB drive either refused to write to the card, hung, or corrupted whatever was on the card in the third case. Has anyone else had these problems? I'm fairly content with using the SD adapter, but having a micro SD reader/writer would be nice too. I don't want to send the whole thing back to get a replacement either.