i have a bt848 based card , i want to capture with a VFW DV codec that i have, but windows show me the codec only if the resolution of capture is 720x480, and the max resolution of my TV card is 640x480.

i can change the frame size from 640x480 to 720x480 in AVI_IO, but every time i start to capture, i got a message that say :

( sorry no more I/O buffers available )