I tested to import the pes4 balls in the pes5 demo and it works fine. just import them with graphic studio

unnamed_0 ist the ball mdl file (bin file)
unnamed_1 is the ball texture (you can import it in bmp version or bin file)

that's the result: http://filehost.to/files/2005-09-23_03/183146_shudoh.jpg

which program did you use to increase reserved space?

dkz studio 0.84b I think

i don't increased the space just overwrite and it works

mhh... i tried the same but the model file was just too big (Nike Legend).
im gonna try another ball mdl..
so u used graphic studio 5.9.9.9 ?