SDI (Serial Digital Interface) is a digital video over coax standard with up to 540Mbs of bandwidth. For now it’s only found on high-end a/v hardware. Retired broadcast engineer Robert Cobler hacked a SDI interface into his his satellite reciever and Danny Mavromatis did his DVD changer for the ultimate in digital video quality. Robert built the ‘Poor Mans SDI‘ to show that SDI doesn’t need to be expensive. He interfaced a National CLC020 to the Bt865 video chip and added some logic hardware to impliment the required SAV/EAV signals. If you’ve got the right video chip(with the right clock), you can use the evaluation kit to make your own. Check out danny’s blog entry for a beautiful screen capture.
[Update: The DVD mod is by Danny Mavromatis - Robert wrote up the satellite mod on AVSforum - Thanks Scott]