Changing image types

I just noticed this. Why does the image handling system change the image type upon compression? I uploaded a png image and it changed it to a jpg? Why?

shouldnt:

if ( ($scan['mime'] == 'image/jpeg' && $ext = '.jpg' ) ||
( $scan['mime'] == 'image/gif' && $ext = '.gif' ) ||
( $scan['mime'] == 'image/png' && $ext = '.png' ) )

should move as is... what page? what file?

Here's the link to the page. The image displayed was uploaded as a .png

http://towme.net/m/photos/view/Image1

I'm going to try it again just to make sure. Maybe try uploading a couple different types

UPDATE:

I went back and added three more images to the album, a png, a gif and a new jpg. All of them are now jpg. Right click on the image and look at the url. For some reason, the system is converting them all..

D7 RC1, ie8 using xp pro......

Hello SkyForum!

Yes, all pics are converted to JPG (except original file). It was made for easy work with some parts of files modules.

Regard

Ok, next question then. Where does one access the original file for viewing?