Before the dashboard update last fall, I was able to easily choose which device I wanted to download things to.
Back then, when downloading anything, I could simply choose to save to a connected "memory unit" instead of to the hard drive.
But ever since the dashboard update last fall (at the time Kinect was released), now it simply says "Save to: Hard Drive" and there's no option to change it, even if there are multiple memory units connected.
It changes to "Save to: Memory Unit" instead of "Save to: Hard Drive" only when there is insufficient storage space left on the hard drive.
Has the option to manually set it so that it downloads to a memory unit instead of to the hard drive been completely disabled?
I have emailed XBOX customer support asking about this problem several times already, but every time that I do, I simply receive a completely irrelevant response (...such as instructions explaining how to transfer saved data from the hard drive to the memory unit... even though that's exactly what I'm trying to avoid having to have to do...).