bt864、865 458the bt864a/865a is specifically designed for video systems requiring the generation of composite, y/c (s-video) or rgb (scart) video signals from an 8- or 16-bit ycrcb digital video stream. worldwide video standards are supported including ntsc-m (n. america, taiwan, japan), pal-b,d,g,h,i (europe, asia), pal.m (brazil), pal-n (uruguay, paraguay) and pal.nc (argentina). the bt864a and bt865a are functionally identical, with the exception that bt865a can output the macrovision level 7 antic