HDCP and HDMI

Archived from groups: alt.tv.tech.hdtv (More info?)

I have a Philips 30pf9946d with HDMI input.
I would like to buy a Sumsung 325 upconverting DVD recorder.
The 325 uses HDCP and Samsung's web site indicates that it will not work
with a TV that doen't have HDCP.

I called Philips and was told that they don't think my TV has HDCP.

I found this on Philips site:

The signal transmitted through a DVI connection is always encrypted with
HDCP (High-Bandwidth Digital Content Protection) to prevent recording.
Because there will come a day when signals transmitted through a digital
connection without HDCP won't be allowed by the broadcast industry, you can't
go wrong with DVI. HDMI is backward compatible with DVI sets.

So this could imply that it might work.

Does anyone out there know about HDCP and HDMI,.

Thanks, Don

Archived from groups: alt.tv.tech.hdtv (More info?)

Kalman Rubinson wrote:
> AFAIK, all HDMI inputs/outputs have HDCP. The same cannot be said of
> ALL DVI connections.

HDCP is indeed optional on DVI, although most (not all!) DTV/CE devices with
DVI now have HDCP support. PC devices with DVI rarely have HDCP, for now.

HDCP is "recommended" on HDMI (pp.96, HDMI 1.1 Specification), although most
if not all HDMI implementations today have HDCP. HDMI is used almost
exclusively on DTV/CE devices today.

Thomas Gilg