Is there a way to use an Xbox Memory Card as file storage (for the xbox)? That way, you could like plug in a hard drive, put it in external usb case, on MS Dashboard format as memory card, then use as storage for music, photos, etc.

I believe you can, the biggest "memory card" ive tried to format was 256mb, but it's pretty pointless since the Xbox 1 only supports USB 1.1 so the data transfer rate is really slow.