I tried using the GIMP but the MNG plugin just crashes everytime I use it.
Is there a different (preferably free) program that does this?
I tried ImageMagick and that seemed to do the trick:
convert animated_gif.gif animated_mng.mng
I usually prefer an online solution when I need to do something once in a while. This helps me in getting the task done without any hassle of downloading, installing, etc.
If you prefer the same and want to change some image(s) go to change-images.com. This time I was looking for a GIF to MNG converter and this site worked like charm.
This site is an excellent resource - where you can not only convert images, but can also:
without any hassle of downloading or installing a single thing.
The site provides a wide array of options for every task and the output quality is pretty good too. I highly recommend this site to everyone.