I haven't tested until this thread prompted me. I set up for medium normal jpeg, standard PC at default setting, NR off, ADL off, manual exposure 1/250th ss. The buffer indicated 45 at the start then started to drop about half way through the run. It dropped steadily until 100 shots, then stopped at 100 images. FPS didn't sound like it was changing and it took 16 seconds for the 100 shots, so 6.25fps. Maybe if I found another feature to turn off I would have got the 8fps? (Maybe I should have used 1/500th?) In any case I got to the 100 shots without the rate changing, and the green "write" led went out within a second of the 100th shot, so no problem writing to a Lexar Professional UDMA 300x card.