On Sun, 14 Apr 2002, Billy Biggs wrote: > 640/scanline, and if you go to like 960 which the bttv samples at itself > you can see even more detail. I think it would be neat to record at Those 960 some samples include the front and back porch. The most you can get out of the bt8x8 chip is about 760 visible samples. However, if the bt848 doesn't get enough samples, it will drop the whole line. So you need to keep it to around 740 to be safe.