Quote Originally Posted by Cleansation View Post
PNG is the superior format, quality and layers... What more can you ask for ? :p

Gif's are good for animation and stuff but the quality sucks pretty bad for non moving images.

Jpeg's are just crap but small file size (like jpeg) and for some reason the most commonly used format.
The reasons are quite obvious. First, you'll have trouble telling a high quality JPEG compressed photograph from one stored in PNG. Second, photographs don't really need layers. Third, a 6 MP PNG image would be gigantic. They would take forever to send over the internet over the average internet connection, and you'd only fit what, 20 images on a 1 GB memory card? Something like that.

Actually, a bit more. I just did a test, and i ended up with 13 MB for a 6 MP image.

Don't get me wrong though, PNG is good, but it's not practical to use in all situations. I use PNG for my own graphical works, but i convert them to JPEG when I upload them to the internet.