[mainguy]

Not sure exactly, but wouldn't these images theoretically scale up better than jpeg? i.e. Making a 600x800 image out of a moderately compressed 300x400 seems like these would potentially scale better than jpeg (for some types of images).

[evan_]

I think you'd just start to notice the fuzzy artifacts more in a larger image and need to have more and denser samples to make up for it.