If you open a jpeg in a photo editing program and save it as some other file format (tiff comes to mind), you avoid any further "jpegulation" damage. Very easy to avoid.
graywolf wrote:
Copying does not change the file. Openning it and saving it again does. So anytime you try to edit the file you lose data. In other words if you are never going to edit (that includes resizing) the file jpegs are fine. The only problem with that is if you are not going to edit your photos, why bother with high-end digital in the first place?
