[ Ref. Geoff Ward in 241124 MMDigest ]

> Is PlaySK able to read an .MP4 file created with a video camera
> taking a video of a roll playing on a player piano?

PlaySK only supports scanned images and does not support video files.

In fact, it is technically entirely possible, and older versions of
the PlaySK supported mp4 and webcam input. Here is a video of an older
version playing a mp4 file: https://www.youtube.com/watch?v=eB8_ckCA6GI 

There were some issues with the emulation quality compared to scanned
images, [and so] the video input is no longer supported. But I would
like to support it again someday.

Best regards,

Katz Sasaki (Katsumasa Sasaki)
Japan

[ Compare to this video by Bob Taylor ("ampicoab"):
[ https://www.youtube.com/watch?v=jTNJUE_T9Os 
[ Chopin Ballade #4 in F Minor performed by Julius Chaloff
[ -- Robbie