disabling Macrovision -- not filtering it later
Posted by Eric Koester on September 28, 1998 at 11:20:00:
Macrovision is a major downside to an otherwise good optical disk video format (dvd).I just got my Panasonic A-110 dvd player and am unable to watch dvd discs without seeing Macrovision
picture fading! I am forced to run the dvd player through my vcr because all the tvs in the house
have RF in only. The vcr is the only device that has s-video and composite video in along with an RF modulator
to create the RF signal needed for the tv. I am only trying to watch the dvd discs that I paid for.
One solution is to buy new tvs.
The other is to modify the A-110 to DISABLE the Macrovison rather than filter it out after it has been
inserted into the video. I noticed when playing a dvd that even in PAUSE mode, the Macrovision was still changing the video
signal. This suggests that the Macrovision is not encoded on the video stored on the disc, but that
it is being added to the video signal by the PLAYER! Judging by the "digital brightness rings" in the
paused plusing video, it looks like the Macrovision is being added to the video while it is still a
digital video stream and before it gets to the NTSC encoder. I wonder if:
1. the Macrovision process is done by one chip in the dvd player
2. the Macrovision process is integrated into the NTSC encoder chip
3. there is a pin on one of the chips in the dvd player that is a Macrovision ON/OFF signal that
could be changed with a pull-up resistor or a pull-down resistor. Does anybody have any Macrovision modification information yet? I think this information needs to
get published somewhere! Anyone know? Eric Koester
Follow Ups:
Return to the new SMR Forums Menu
Design
& HTML © SMR Home Theatre, Images © SMR Home Theatre cannot be reproduced without
permission. The images on this page are digitally watermarked. New forum
messages should be posted into SMR Forums v2 - http://www.smr-forums.com/
|
