Custom boot animations for EVO.How to ?

[vin255764]

I unzipped stock animation replaced 1 image and zipped back and its stopped working.Image is the same 480x800 png.I tryed to apply read only attribute too.

I thought its because of permissions,so I changed them to rw-r--r-- with root explorer (just like before I touched it) still no go...

Same thing with apk.If I replace a single image inside,it will not install.

Whats the trick?

BootAnimationPreview.1.5.exe plays it fine,but EVO does not