Matt,
I did all of the above, still no luck. After doing the "Init File System" and it still didn't recognize it I put the sd card back in my computer and as soon as I inserted it it said "disk must be formatted before using" .
I've tried formatting it in all the options and copied just random files off my puter onto the sd card each time and opened those files from the card so it is reading/writing files.
However, my 1M does switch to a different source SOMEWHERE when I switch from int to ext.
I had 6 files stored on internal memory (which it didn't delete when I Init File System like it said it would), then I switched to ext and there were zero files - still 256mb total memory in both locations.
Where is the external memory if not to the micro sd card?
I found out that the storage is limited to the option that was ordered when the receiver was purchased. 256 MB is the default, this is regardless rather the internal or external memory is used. Also the formatting of the SD card that is used is not compatible with Windows. Files would need to be transferred through NetView.