Additional channels for new uses, such as narration, description for visually impaired, and additional languages. Metadata-making good use of information accompanying the audio to define the service and its features. Performance Discussion to date tends to support the premise that the e-cinema system performance target should be equivalence with film in a typical theatre. It is only recently that electronic projection has reached the point of being arguably equivalent. There are, of course, differences.
Film still has somewhat better resolution, contrast and color gamut.
But electronic projection provides consistently good quality, significantly reduces jump and weave, and eliminates the effects of film wear and tear. The answer affects the timing and cost of the e-cinema transition. There are a couple of factors which argue that the e-cinema system that gets deployed in volume may need to significantly improve on today's film. In the next few years, consumers will be increasingly exposed to HDTV broadcasting. HDTV brings into the home a very significant performance improvement.