AVC video help

hey I am using SUPER video converter to convert my flv files into psp files, it works fine when I convert them to Mpeg4 videos but everytime I try to convert them to AVC videos no matter what I do they just come up as corrupt icons.

its named MAQ12345 and put into the ANV01 folder or whatever and I have tried it w/ and w/out .thm files its alwayd corrupted. I put it in the VIDEO folder too. I can only get mp4s to work.......except for an avc video I downloaded from psp.connect.com , that works. and with or without a thumbnail.

any advice?

bump

also it doesn't say corrupted data it says unsupported data