LG V VX-9800

I wanted to set some video as wallpaper they were a slideshow of pics 22 megs big but i get the "Select content is over size for set as! Please select another one." error msg and was wondering what is the max size u can have video wallpaper? Also is there a max size ur regular can be to run on the phone? I converted FFVII:AC into a 4xxmeg sized 3g2 format and it runs fine on my pc but doesnt show time lenght or start on the phone. What do u guys know of these sizes problems in having?