Anyone have CandyK collection videos of 720p or 1080p?

Those videos came out before 720p was even a thing...

^What he said.

She was a Latvian camgirl in '03/'04. Not only were webcams far less advanced back then, I doubt the equipment she used was top of the line.

I mean, can anyone convert videos to 720p/1080p?

There's nothing you can really do to improve image quality. You can use algorithms to interpolate to an extent, but it really wouldn't do much. So many of her videos have severe artifacting and stuttering that there isn't much of anything you can do to "restore" them (and I say "restore" with quotations because I'm pretty sure all of the artifacting is from her webcam, and therefore no clean original copies actually exist).

Have you tried the Rockwell Turbo Encabulator yet? The six mazel vanes essentially inhibit side fumbling. It may work.

I've had some success with Video Enhance AI and Gigapixel AI. Currently working through some legacy upscales for personal projects, might start doing doing batch runs of my old stash if I can put together a decent workflow.