JPEG stands for Joint Photographic Experts Group, so the format should be referred to as "JPEG" when possible. A long time ago, though, all file extensions (like .jpg) had to be 3 characters in length or less, so .jpeg was shorted to .jpg. When people stopped using OSs that required the 3-character limit, .jpeg became more commonly used. [ theymos's advice column | Ask theymos A Question ]
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.