HDMI is the next generation spec that was designed to supersede DVI. This new specification was just finalized in December by an industry group that includes Hitachi, Matsushita (Panasonic), Philips, Silicon Image, Sony, Thomson, and Toshiba.
Though backwards-compatible with DVI, HDMI adds a new, smaller connector, built-in content protection, and audio support to the DVI spec. It transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements and requirements. In fact, a typical HDTV signal uses less than half of an HDMI connector's total bandwidth of 5GBps.
Many people are awaiting HDMI with bated breath. "As digital media forms a bigger piece of the consumer entertainment experience, many users are overwhelmed by the complexity of interconnecting all the pieces," said Steve Kleynhans, vice president of the META Group, in December when the spec was finalized. "HDMI, as an industry standard, will provide some measure of relief while providing the quality users have come to demand, encouraging the adoption of new types of digital entertainment."
The move from DVI to HDMI should start next year, but even though content providers love it, it won't be an instant success. Manufacturers have just finished investing a lot of money in designing DVI into their products, and therefore, "They will not be in that big of a rush" to adopt HDMI, says O'Rourke. They'll want to capitalize on the DVI investments before moving forward.