N
Norm Dresner
- Jan 1, 1970
- 0
In addition to being an engineer, I'm also a consumer and I've run into a
situation that I'm curious about. A friend gave us a new DVD player as a
Christmas present which had only audio/video outputs. Since our TV set is
an older model (circa 1986) , it lacks these inputs but our VCR had them so
I glibly plugged the DVD player into it and tried to watch a DVD. Of
course, it doesn't work and the DVD player manual explicitly says that it
won't because of copy-protection.
I'm not looking to break the system -- I fully intend to buy a new TV set --
but I'm technically curious. What are they doing to the signal that makes
it acceptable to a TV set but unusable to a VCR? I'd assume they're mucking
with the sync signals but how does one work and not the other?
TIA
Norm
situation that I'm curious about. A friend gave us a new DVD player as a
Christmas present which had only audio/video outputs. Since our TV set is
an older model (circa 1986) , it lacks these inputs but our VCR had them so
I glibly plugged the DVD player into it and tried to watch a DVD. Of
course, it doesn't work and the DVD player manual explicitly says that it
won't because of copy-protection.
I'm not looking to break the system -- I fully intend to buy a new TV set --
but I'm technically curious. What are they doing to the signal that makes
it acceptable to a TV set but unusable to a VCR? I'd assume they're mucking
with the sync signals but how does one work and not the other?
TIA
Norm