pegg wrote:I thought Macrovision uses random codes that can't be cracked.
I remember experts saying you can't disable Macrovision in VHS
because the signals have been integrated to the video much like
HIV being part of the immune system already and hard to dislodge.
But I read DVD Decrypter can really remove all Macrovision from
all DVDs. How did it manage to know the locations of the signal
in the frames?? Did they steal the decryption codes directly from
Macrovision or something?? Maybe the procedure can be used in
eliminating HIV from patients too.
I believe on a DVD, macrovision is just a flag that enables your DVD player to produce a macrovision infested video signal. I think there are players out there that have been hacked to turn this off (APEX).
On a VHS / BETA tape, macrovision is in the actual video recording and messes with the Automatic Gain Control of the VCR you are trying to record with. There have been all kinds of boxes to remove this for sale over the years.