The dispute came about after there were re-examinations of Mitchell's most recent record-setting runs in Donkey Kong, which led people to compare his snapshots with the original arcade machines. It turns out that the footage that was used to capture Mitchell's latest runs seem to indicate that the frame renders were based on the MAME, which compiles the frame render output differently from the original arcade machines. There are comparison captures between how the MAME and the original arcade machines display the images on screen, and in the case of MAME it has a snapshot effect, whereas the arcade machines render using what they call a "shutter effect."