I'm thinking until the 8 GIG fault problem is solved, only those recording small <2 GIG files should use 8 GIG cards, period.
It's disastrous if unintentionally exceeding 2 GIGs and quickly getting a locked up card and/or deck with the usual 256 small 1-2K size files. Likely impractical to erase these hundreds, but it takes time to erase enough one at a time to continue using the card? Otherwise only speedy in-deck card reformat choice (MY personal favorite), but then losing first 2-GIG file if without computer to transfer. Of course we all keep a second flash card ready as backup, so we lose some recording time, but are quickly back recording in what might seem an eternity.
Bottom line is this is NOT something most want happening while recording a gig as it's a potential show stopper that's avoidable.
JUST HOW SMART IS IT TO HAVE A 2 GIG DUMMY FILE???
At this time, there is very little advantage (~7.54GIG user available), with the first 2 GIG taken up with a 'dummy file' leaves ONLY 5.5 GIG user capacity!
Suggest settling for two 4 GIG cards (7 GIG combined capacity), and feel more SECURE knowing spanning works flawlessly even with older 1.10 R09 firmware.