D-VHS DECK I-LINK OUT - Old post

[Litaiff]

Saw this old post from 2004, is it still totally true?


Even easier, I quote myself.

"Hi Everyone, Please be careful considering D-VHS. A D-VHS VCR cannot transfer video from D-VHS or analog VHS through firewire to a computer (except possibly to an HDTV Tuner card). The firewire output on D-VHS is not the same as the DV format firewire output on a DV camera or an analog-digital converter such as the Canopus ADVC-100. The only thing they have in common is the cable used.

Firewire, as used in the D-VHS VCR format, records or playsback only digital HDTV (ATSC?) signals to/from either an HDTV reciever (setup box) or an integrated HDTV tuner inside a HD television.

Please do not buy a D-VHS VCR thinking it can transfer either D-VHS or VHS video to a PC for editing and DVD creation, because they simply cannot do this."

https://forum.videohelp.com/threads/151780-Capturing-from-a-DVHS-VCR-with-1394-outputs

[Cornucopia]

Yes. D-VHS encodes an MPEG2 stream on the tape, and sends that through the firewire. NOT DV of any flavor. Am pretty sure it is not directly compatible with the HDV or MicroMV mpeg2-based consumer formats, either. Nor of BD, AVCHD, or any of the pro formats that use mpeg transport streams.

Since those formats dried up decades ago, nothing has changed in the tech hardware options with them.

Scott

[dellsam34]

@Litaiff, Yes they can capture non Macrovision VHS tapes and output as 480i 4:2:0 mpeg-2 over firewire, I've even posted a link to a test I've done on few of your previous threads, I don't know why you keep mumbling about D-VHS when I've answered numerous of your repetitive questions, Maybe the PAL machines don't have the capability to output analog tapes via firewire, but NTSC countries don't have that restriction.
I've addressed that thread accordingly.

[Litaiff]

@Litaiff, Yes they can capture non Macrovision VHS tapes and output as 480i 4:2:0 mpeg-2 over firewire, I've even posted a link to a test I've done on few of your previous threads, I don't know why you keep mumbling about D-VHS when I've answered numerous of your repetitive questions, Maybe the PAL machines don't have the capability to output analog tapes via firewire, but NTSC countries don't have that restriction.
I've addressed that thread accordingly.

I see... I have not yet purchased a capture card that can accept the i-link output from my JVC HM-DH30000U. But I remember that you said that it's better to capture through the svid output, right?

[dellsam34]

For analog tapes, yes.

[Litaiff]

For analog tapes, yes.

Just one last question about firewire vs Svid... In that case, on his VCR model, would it also look better if he had captured it through Svid or would it be the same quality or not?

https://www.youtube.com/watch?v=A-_tJKiCJzE

[dellsam34]

It's not the same VCR so I cannot comment.

[Litaiff]

It's not the same VCR so I cannot comment.

I see. So there may be vcr models, like his, which then yes, it's better to use firewire, right? In my model it is better not to use.

[dellsam34]

No, I meant he uses two different VCR's, a crappy VCR for analog lossless video capture and a high end VCR for MPEG-2 firewire capture, The test itself is flawed, the reason behind it is to proof that MPEG-2 capture is better than lossless regardless the mean.

[lollo]

The test itself is flawed, the reason behind it is to proof that MPEG-2 capture is better than lossless regardless the mean

Which is false by principle, and false by practice, as reported by this experiment with one of what is considered the best MPEG-2 encoder:
https://www.digitalfaq.com/forum/video-capture/12740-current-capture-device-3.html#post87179
https://www.digitalfaq.com/forum/video-capture/12740-current-capture-device-3.html#post87198