Boot Camp Assistant - Setup from SD Card I am trying to install Windows 7 using the Boot Camp Assistant. I have downloaded the ISO, however I don't have a CD drive as its a MacBook Air and all my USB drives are too small. I am trying to install it using an SD Card as I read that they are handled in the same way as USB drives, however I can't find a way to get the assistant to recognise the SD card. Can any one help?
You can't do that as neither, OSX nor W7/W8 support booting from an SD card. 

Get a simple usb-sd card adapter (not a multi card reader) and that'll work. In fact its what i used a micro-sd card in a usb adapter with an old 8gb card.