Each scanned ballot is likely the same size, and making more of them is just a matter of duplicating files... easy to do. 50K votes per USB drive strikes me as very peculiar - maybe a limit of the USB drive they're using, or some sort of limit on the Dominion scanners.
It's also very unlikely that actual USB drives would be exactly 50K each.
Sounds like something that would be in the Dominion voting user manual.
No, I don't think it's a USB related cap. I'd ASSUME that the machines when they autorun/load the files from the USB have a limit on how much they can safely load. I'd assume this is due to RAM limitations.
It's probably a best practice measure. Can it take more than 50k? Yeah, probably, but to ensure that you don't lock the machine up or lag it to the point of not working, they likely said 50k per stick.
Hmmm....there could be a limit if each “vote” was a unique ballot image. Doubt it would happen to work out to exactly 50k but maybe close. Does anybody know the file type of the scanned ballots and the expected size of those scans?