While it is somewhat duplicative to include evidence that has already been presented, we wanted to provide a sample of some of the work we are doing to confirm both the MAME and Arcade rasterization assertions that have been previously made in this dispute thread.
We feel that working to specifically confirm this element is key since it sits as one of the technical foundations of the dispute claim.
Below you will see footage of an original Donkey Kong arcade display output as well as a Donkey Kong MAME Version 0.145 display output (we are in process looking at all MAME profiles we feel could be relevant for internal reasons.)
This footage was shot with a 4K camera capable of capturing 120fps.
We shot each game twice. Once at 120fps and once at 60fps.
The results of our testing so far have been unilaterally confirming the assertions made regarding MAME rasterization, regardless of MAME version used, as being distinct and discernible from original Arcade rasterization in all instances.
(You can slowly drag the control bar maker to view frame-by-frame)
We continue to investigate this dispute.