Ricky Bruce wrote:
I think most dvds display at 720×576, which equates to 414720 pixels and fits onto a 4.7 GB disc, hd dvd i think is 1920×1080, or 2073600 pixels which is about 5 times the number of pixels per frame.
Yes, but DVD's use MPEG2 which is pitiful compression compared with MPEG4 (XVID etc and H.264). A typical DVD will transcode down to around 1GB which should make it possible to fit an HD film (with extras) comfortably onto a dual layer DVD (and *almost* onto a single layer disk). HD-DVD and Blu-Ray do mean that a typical 2-disk set will fit onto a single disk but in my experience 2-disk sets are done for marketing anyway (ie 2-disks are better than one). -- Mark Rogers // More Solutions Ltd (Peterborough Office) // 0845 45 89 555 Registered in England (0456 0902) at 13 Clarke Rd, Milton Keynes, MK1 1LG