Here is a Summary of Staements from these sources:-

Digital Display Working Group --http://www.ddwg.org
Extreme Tech -- http://www.extremetech.com
Silicon Image -- HDCP White Paper, Residential Systems on HDMI, and HDCP feature from EDN.
Secrets of Home Theater and High Fidelity -- http://www.hometheaterhifi.com

What is HDCP?
As we mentioned earlier, DVI delivers exceptionally high quality video. In fact, the quality is nearly as good the original or master content. This previously unattainable quality has raised concern from Hollywood executives who fear video could be mass produced and illegally distributed, much like what has happened within the music industry. In an effort to protect this high definition home video content from being copied and illegally distributed, Hollywood studios employed tech companies Intel and Silicon Image to develop a method of security encryption. The standard they created is called High bandwidth Digital Content Protection or HDCP.

HDCP works by adding circuitry within the DVI connection on both transmitter (DVD player, cable box, etc.) and the receiver (projector, LCD TV, etc.) that encrypts video content. Software such as DVDs will not be affected as was the case with tapes for your VCR. Instead, the source players and the display device will be responsible for the encryption.

Can I watch HDTV without a DVI connection on my projector?
Yes. Using a component video (YPbPr analog) input you can still watch HDTV content. If the video source (DVD player or cable box) is able, you can watch video as high as 1080i with this type of connection. The primary difference between the two types of connections is that component video will be a converted analog signal rather than a pure digital signal.

A high-definition analog signal still looks immensely better than a regular analog broadcast signal. Particularly when viewed on a large screen. In some cases, an analog image will often look as good (and sometimes better) than a digital signal.

Can I watch HDTV content using DVI without HDCP compatibility?
Yes, if the cable box or DVD player is capable of outputting HD quality signals and is not using the HDCP encryption yet, you will still be able to use your DVI connection to watch high-definition content. Remember you can also watch analog high-definition content via a component video connection.

Will projectors with DVI and without HDCP be made backwards compatible?
It isn't clear whether a legitimate, legal solution will be developed for those consumers who purchased DVI products before the advent of HDCP. Projectors without HDCP compatibility will not be made compatible with a simple firmware update. There is hardware required to make the conversion. However, there may be a solution using an IEEE 1394 converter that allows for digital-to-digital HDTV from legacy DVI devices.

What about DTCP and IEEE 1394 FireWire?
Digital Transmission Content Protection, or DTCP, is the encryption standard used to protect content which is sent over the IEEE 1394 of FireWire standard. The DTCP standard allows for use of a set top box which decodes the digital signal. DTCP is unlike HDCP which requires a direct link between source and display device, however, due to the bandwidth limitations of FireWire, it is not the best choice for 720p or 1080i uncompressed digital video.

FireWire is not a common connection on video projectors, but is more commonly found on plasma and LCD TV digital displays.

New on the Horizon -- HDMI.
High Definition Multimedia Interface is a descendant of DVI. Like DVI, it is a digital cable and connection that supports digital data transmission. Unlike DVI which supports only video transmission, HDMI supports both high definition video and audio. HDMI will offer 'legacy' support of older DVI connections.

DirecTV, EchoStar (Dish Network), and CableLabs are supporting the new HDMI standard.



Sources
Digital Display Working Group --http://www.ddwg.org
Extreme Tech -- http://www.extremetech.com
Silicon Image -- HDCP White Paper, Residential Systems on HDMI, and HDCP feature from EDN.
Secrets of Home Theater and High Fidelity -- http://www.hometheaterhifi.com

However I think you've missed the point. Obviously the film camera you would buy now for production work will have a lot a features that are missing on your 30 or 20 year old camera and the price will be accordingly higher. If you really want to get down to a religious debate that video is superior to film, well, have fun.

Where did you get the idea that I prefer video to film?

Today we have the best of both worlds by shooting film and using DI for post. 2K is realtime now, and 4K is not bad (and I'm sure that will be realtime too soon).

I saw an industry screening last night of a feature film shot in Super 35 and posted in 2K DI by Fotokem, with digital projection by Christie's latest and bestest 4:4:4 14-bit X'Y'Z' color space projector on to a 20'x50' screen. It looked like film in every way, but didn't have any of the artifacts that some people pay good money for.... :O)

Even the Viper can't get the quality I saw last night, and from what I hear, neither can the Genesis.