nyphonejacks, on 05 September 2010 - 07:41 PM, said:
i never read this method anywhere before, i just took a chance, not understanding the copy protection at all... i just assumed that the protection was an added signal added to the output that the modulator either did not need, so did not use, or i thought also that maybe the signal is digital, and since the RF modulator only needs to pass an analog signal it did not encode/decode the digital signal not too sure...
i used an RF modulator that i got from radio shack when i did this... not too sure if the one i have in the living room to stream my cable box to the rest of the house is the one that i used, or if it is one i picked up at a thrift store when i bought a 2500 set for $5 for the phone and modulator... not too sure if it would work with using a VCR as a modulator... but use what you got on hand... looks like you have plenty of VCRs around... you should try to pick up an RF modulator to play around with... or i might be able to donate the extra one i picked up for shipping $...
Funny enough I think I do actually have an old radio shack RF modulator that needs some resoldering since (if I remember correctly) one of the RCA connectors broke loose. I bet I have enough ways to figure out if this does the trick.
From what I have heard, the copy protection is stored in the same part of the video signal that holds subtitles (and teletext if my friend from across the pond is right). Usually any device that strips protection will also take subtitles with it. So I wonder if using the modulator takes the subtitles away or not. It might also very well have to do with some sort of digital->analog conversion.
Definitely something to toy with.