Some animated GIF gets distorted after "convert"

[spit_on_me]

Hello! First of all I want to say I'm new to all this graphical-editing thing. My problem is when i convert some animated gifs using windows command line(terminal in windows) some of them results are terrible!!!
For example this is what I get using

Code: Select all

convert "input.gif" "output.gif"

this is the original gif.
I've been looking for an answer for past 2days, red animation basics/optimization/modification searched forums and only found two similar threads but without an answer or refering to animation basics/optimization/modification which gives no staright information on how to solve my problem.
What I can say is that ImageMagick only takes moving/changing part of a frame and aligns it to top-left corner, so -coalesce should solve this problem, but i can say that it certanly does not.

[snibgo]

In the current IM, v6.8.4-0, I get the same horrible result as you. But v6.8.3-0 and 6.7.9 work fine for me.

[spit_on_me]

Thank you! I'll try that.

[anthony]

Even that server pointed to does not handle that image very well!

[spit_on_me]

Could you please give me compiled 6.7.9, because I found only source binaries on sourceforge and I have no idea how to compile it to be a .exe installator.

[snibgo]

Sadly, I don't seem to have the 6.7.9 Windows distribution. I have copied a 6.8.3-0 distribution to dropbox. Open the web page, and download from there.

https://www.dropbox.com/s/l7evmxggzij4f ... atic.exe?m

I may delete it from dropbox after a few days.