I used a new 8G SanDisk SD card and was able to install the DI Raspbian software without difficulty. For whatever reason the SD card became corrupted. I put the SD card into my Dell Notebook computer and formatted the SD card again. The card had 7.4G on it. I used windisk installer to install another copy of the unzipped DI Raspbian onto the SD card, but when I look at the SD card it says the size of the SD card is 45M and another 45M available. I tried several methods to recover the full SD card but when the unzipped software is installed I get the same problem.