Here's what I've found in my research.Copy Control Information (CCI)
...a two byte flag included in digital television streams that allows content owners to specify how content can be duplicated.
0x00 - Copy freely - Content is not copy protected.
0x01 - Copy No More - Essentially the same as 0x02
0x02 - Copy Once - A recording can be made, but that is it.
0x03 - Copy Never - the content can be recorded and viewed for 90 minutes after transmission, and is not transferable.
0x04 - Content is Copy Once for digital output, but would have Macrovision 7 Day Unlimited restriction applied on the analog outputs. This affects content viewed either on an HDTV with component cabling or on a standard definition TV. It also affects content saved to VCR or DVD when the recorder is connected to an analog output on the DVR.
0x07 - Content is Copy Never for digital content (deleted after 90 minutes) and Macrovision 7 day/24 hour for content recorded from analog channels. Content cannot be transferred via TiVoToGo transfers or MRV, and cannot be saved to VCR or DVD.
Digital devices can recognize CCI and prevent digital transfer to other digital devices (or recording to DVD).
Note that some levels will actually create Macrovision when trying to pass a protected signal over an analog connection. (So if you've previously recorded such a signal and try to play it via analog cables to another device, you get Macrovision interfering with your ability to record).Macrovision (technically CGMS-A)
Copy Generation Management System - Analog (CGMS-A) is a copy protection mechanism for analog television signals. It consists of a waveform inserted into the non-picture Vertical Blanking Interval (VBI) of an analogue video signal. If a compatible recording device (for example, a DVD recorder) detects this waveform, it may block or restrict recording of the video content.
It does just what you expect it to do, and AFAIK
is removable with those video stabilizer boxes that have been around since the 80's.
Translation: In theory, if you put a video stabilizer between your cable box and DVR, there shouldn't be anything to worry about (I have not tried this). Since there is no useful digital input on these units, CCI will not be an issue (when using a STB or DTA).
Here is a discussion on this board of the two more popular devices: http://www.avsforum.com/avs-vb/showt...php?p=13404620
. The one is built by AVSForum member "Logic Design".
This of course will not allow you to defeat the dreaded Ghostbuster symbol from anything you've recorded to the HDD and want to burn to DVD. (Actually, if you have two DVD Recorders, you can probably figure a way around that too.)
BEFORE anyone complains about me posting this, all my info is from Wikipedia and other threads here on avsforum, not the darker reaches of the net.