taking a look at JPG Magazine and their rules, I note this:
Photos must be in JPG format, at least 2200 pixels wide or tall at 72dpi (so they look great in print), and under 10mb each.
2200 pixels? Sheesh, I usually go to 1000 on the longest side when I scan. I guess I could go larger, but wow, that seems big. My digital shots are “right-sized” as I think I choose the largest/highest resolution available. Feh. Hope I remember to change this when I sit down to scan next đŸ˜‰