Multispectral Images

[davidjackson]

TIFF is a good format, widely used in desktop publishing and the printing industry—I prefer it—but JPG isn't always lossy. It depends how it is stored. There are settings for JPG that determine the amount of compression (and loss) and it can be saved as lossless.

True, true. But when was the last time you saw one of those in the wild, as it were?
BTW, the Beinecke jpgs are lossy, IIRC.