I have two 4-gig cards. My setup is slot-2 is overflow, pictures are NEFs, high quality. If I install any one of the cards into slot-1 or slot-2, the camera shows a capacity of 111 pictures (about 36mB per picture). If I install both cards, I still see a capacity of only 111 pictures (I would have expected about 222 pictures). I can take pictures and playback on any one card without problems. It appears that the camera reports status for slot-1 only.
This is just an observation, but if slot-2 is overflow to slot-1, I would have expected the sum of both cards. Can anyone confirm my operations?
#2. "RE: Sum of memory in slot-1 and slot-2" In response to Reply # 0
As Brian wrote above, only the space in the current card is dispayed. Keep in mind that the 111 image capacity is a conservitive estimate. As you get closer to filling the card, the display will become more accurate.