OK! all you A-Holes living in the .jpg world...

lets quote from From Wikipedia.com...
[link]
On the other hand, JPEG is not as well suited for line drawings and other textual or iconic graphics, where the sharp contrasts between adjacent pixels cause noticeable artifacts. Such images are better saved in a lossless graphics format such as TIFF, GIF, PNG, or a raw image format.

JPEG compression
The compression method is usually lossy, meaning that some original image information is lost and cannot be restored (possibly affecting image quality.) There are variations on the standard baseline JPEG that are lossless; however, these are not widely supported.


.PNG...
[link]
November 10, 2003: PNG is now an International Standard (ISO/IEC 15948:2003). This version of PNG differs only slightly from version 1.2 and adds no new chunks.

PNG uses a non-patented lossless data compression method known as DEFLATE, which is the same algorithm used in the zlib compression library.



"since .png was designed to replace .gif...
the animation issue has to be addressed."-FI

Animation
PNG itself does not support animation at all. MNG is an extension to PNG that does; it was designed by members of the PNG Group. MNG shares PNG's basic structure and chunks, but it is significantly more complex and has a different file signature, which automatically renders it incompatible with standard PNG decoders.

The complexity of MNG led to the proposal of APNG by developers of the Mozilla Foundation. It is based on PNG, supports animation and is simpler than MNG. APNG offers fallback to single-image display for PNG decoders that do not support APNG. However, neither of these formats is currently widely supported. APNG is supported in Firefox 3.0 and Opera 9.5.[14] The PNG Group decided in April 2007 not to embrace APNG[15]. Several alternatives are under discussion, ANG, aNIM/mPNG, PNG in GIF and its subset RGBA in GIF.
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so .jpg is as dead as Bell-Bottoms...
can we please move on now??????


I dumped .jpg a long time ago...
primarily in the "Save For Web" Dialogue in PS.
When I saw the image turn to s**t under .jpg...
SFW reduces file size as its base function...
.png simply allows you to have the greatest clarity of image for output.

And you can save .PNG out of APO... WTF!

any questions?....