Animation or Slideshow With JPG or PNG Images

I wish to animate two JPG or PNG images as a replacement for GIF, since these are actual photos and I need the greater color density of JPG or PNG. Since animated PNG is not yet universally supported by browsers, what is the best method to accomplish this task? I tried http://drupal.org/project/jquery_slideshow with the http://drupal.org/node/599190 patch so I can show multiple animated images on one page, but scrolling slows considerably in Internet Explorer when using the http://drupal.org/project/jquery_slideshow module with several images.

Is there a way anyone is aware of to create an animation or slideshow with JPG or PNG in Drupal? I need to display about 25 images on a page, all of which will have a transition between two pictures, and wish to move away from animated GIFs to improve quality.

Thanks for any help you can provide!