Question about Zenith DVB312 DVD Player
You need the isolate the problem:
1) Plug the DVD player into a TV
through the same S-Video cable
If the movie plays on the TV, then
the DVD player and cable are OK.
2) Plug another source of S-video signals
(if you have one) into the computer input.
If it works, than the computer hardware & software are OK
3) The third and most likely possibility is that the DISK is
copy protected, and the obedient DVD player is adding
MACROVISION analog copy protection into the S-video
S-Video is an analog video format that has two separate
channels: 1 for composite B&W video (i.e. Y, or luminance)
and the other for the color (Chroma). Sound is separate.
Macrovision analog protection technology corrupts the
vertical synchronization and blanking pulses within the B&W
which confuses the Automatic Gain Control (AGC) circuitry
of most VCRs. Bill Clinton passed a bill callsed the
"Digital Milenium Act", which makes such garbage VCRs
compulsory within the US.
Macrovision also adds digital pulses into the invisible
scan lines of the output video stream, which are recognized
by DVD recorders, and possibly your computer, such that
they will refuse to accept or record the movie.
Often a macrovision message comes up.
4) Finally, if the video is fine and you don't have
Macrovision problems, there is a strong chance
that your computer's device drivers are not installed
or configured properly, or there is a hardware problem
within the computer.
In either case, the computer manufacturer (tech support)
should be obligated to resolve this issue (4)
5) Inexpensive Macrovision remover boxes are
widely available by searching Google.
Hope this helps
Posted on Apr 23, 2008
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Posted on Jan 02, 2017
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