advice on loading many movies into gl.texture on windows

hi,
if anyone can offer tips for efficient usage of many video textures in
opengl.
i made a poly~ object the dynamicaly loads movies to texture. but
performance degrades with more then 5...

from what i understand.

1. don't read into the texture qt.movie you don't need.

2. use colormode uyvy to pass data into (and out off) opengl
----this apply to mac, on pc is there some pre processing you can use to
make qt movie uyvy?
----i understood qt7 does this on the fly but this didn't work

using an inbtween object like jit.rgba2uyvy does

3. use poweroftwo texture dim
----so better 256X256 then 320X240, 512X512 then 640 480
----what is rect_tex 0 and when and where to apply it?

4. don't read twice.
-----is there a way to load movies into opengl vram like the loadram
message?