i am satisfied with the replies, thanx, but there IS a limit for bitmapdata and I WILL split into individual frames after i load it, then blitter with the current frame of the animation.

I know that a bitmapdata contains more information than just the pixel matrix color but ram memory isn't really a problem for computers anymore...its cheap and affordable now

I will make some tests to see exactly how much % is added with individual frames than the sprite sheet.

thanx for the name of the sprite sheet maker, will tickle it for the rest of the day
thanx guys for the help