i have an internal hauppauge hvr-1250.
This card is not capable of receiving encrypted (i.e. copy-protected "copy-once" programs) delivered by your cable service. To support this you need a cablecard in the TV tuner, and the HVR-1250 is not such a TV tuner. It can only support clear QAM from a cable company, not encrypted copy-once content.
When the coax connector is used, the HVR-1250 is intended only for (a) OTA/ATSC "copy-freely" digital content from a roof antenna, as well as (b) clear QAM "copy-freely" digital content from a cable provider. Alternatively you can feed it S-video (which is analog, not digital) for example from the S-video output of your Samsung STB (but this is 480i 4:3 analog, not 720p/1080i 16:9 digital HD).
But since it is NOT cablecard-enabled it CANNOT be used to receive encrypted copy-once (which WMC will treat as "copy protected") content from your cable provider... if Cablevision in NY delivers content as copy-once. For example, here in TWC/LA virtually every basic/premium channel is delivered as copy-once, including AMCHD. Only local networks channels (e.g. NBC, CBS, etc.) which you can receive OTA/ATSC via roof antenna are delivered by TWC/LA as copy-freely "clear QAM" unencrypted.
So your Hauppauge card can only be used to feed unencrypted channels to WMC. If AMCHD is provided by NYC Cablevision as copy-once, then you are SOL. The results you now see are exactly expected.
But that's why I asked what channel you actually tune to when you view AMCHD live. If you are tuning to a Cablevision channel through the Hauppauge tuner then it must be copy-freely clear QAM, and you should have no problem recording and playing it back. But I speculate that you are not tuning to that channel when you view it live... and you must be viewing it through your Samsung STB (S-video) analog connection, which isn't HDTV at all but rather is the 480i SD version.
i also have a samsung set top cable box. my service provider is cablevision in new york. i am using windows media center to view live tv and record.
But what source/channel is your AMCHD channel being viewed from, when you view it live?
And is this the same channel you specify for the recordings? I speculate NOT.
How is your Samsung STB connected to your PC, if you can view things from it as well? S-video? I can't imagine any other way for you to be viewing it through the Hauppauge card than an S-video analog connection.
i watch and record shows all the time without problems. this particular set of of recordings came from the amc channel. i am able to view this channel, via live tv in wmc, as i type this. these were scheduled recordings so i was not at my computer during the recordings so i can't answer your question about viewing them before recording. i assume the answer is yes, though.
You're not providing enough clear, precise, non-ambiguous information.
You have TWO sources for feeding WMC, it seems to me: (a) you probably have one side of a split coax going to the coax connector on the HVR-1250, and (b) you probably have the other side of that split coax going to the Samsung STB which then is connected via S-video to the HVR-1250. Is this right or wrong?
Then, what precise channel do you tune to when you watch AMCHD via WMC? Are you watching it through a channel provided from the coax input (which would imply clear QAM, unencrypted copy-freely delivery of AMCHD from Cablevision to you)? Or are you watching it through S-video fed from the Samsung STB?
And then which tuner/channel do you specify for the setup of your recording? If you watch from the Samsung STB (via S-video) and thought you could just specify the digital cable channel (feeding the coax connector on the HVR-1250, but encrypted so that it is useless to the HVF-1250 which does not have a cablecard) and do the recording, well you can't. The results you're getting now are exactly what would be expected if AMCHD is delivered copy-once by Cablevision.
Your symptoms imply that Cablevision is delivering AMCHD as copy-once encrypted copy-protected and you tried to record this channel (which is why WMC won't play it back for you, since you need a cablecard to decrypt it which the HVR-1250 does not have).
I'm suspecting you've been watching AMCHD (or so you thought) using the analog 480i 4:3 letterboxed SD S-video input to the HVR-1250 coming from the Samsung STB, not from the coax connection into the HVR-1250.
So... please clarify. Provide channel numbers, cabling connections to the HVR-1250, and exactly what/how you set up your recordings, vs. how you actually watch AMCHD live.
P.S. - I don't think WMC supports S-video input, so I'm actually baffled to grasp how you're making any use whatsoever of your Samsung STB to feed WMC in your PC? Need more details, please.