Quote - > Quote - What is the problem with my demonstration?

The problem is which is it still nonsense.

http://en.wikipedia.org/wiki/JPEG

Referring people to a wikipedia article which confirms the BB's argument == Priceless :woot: The key phrase is "JPEG is also not well suited to files that will undergo multiple edits", note the word "edits", meaning you only get quality loss if the image changes in ways that don't meet the criteria given later on in the section titled "Lossless editing".