Can you post a screenshot comparison? I'm curious what these "crunchy jpegs" look like
Also it turns out it wasn't a Kodak camera, but a Casio QV 10 I had much earlier. You can sorta see what I meant here: https://medium.com/people-gadgets/the-gadget-we-miss-the-cas... .. though the resolution is far lower too. The weird blocky color aberrations aren't just JPEG artefacts but related to the same quantization ordering issue I think.