DV Quality or Super Video Quality??

[Caius]

Here's the thing. Using the D-Vhs JVC-HM-DH3000U, in which I think the DV output has a problem as it no longer connects to the computer's capture card.

I tried the following. I now have a mini DV camcorder. First I connected the DV cable from the camcorder to the DVD recorder, extracted the file to the computer and got the specs.

Second. I plugged the DV cable into the D-Vhs to the DVD recorder. I also extracts files from DVD to computer and got the specs.


But in the second option, the Philips dvd recorder did not show me the monitoring by the DV output. So I had to monitor the super video output.

The DV cable from the D-vhs was connected to Philips dvd recorder and in the recorder's setup I selected ''Default recording source: DV''

But as I said, in the Philips recorder i couldn't monitor it through the DV output, so I watched it through the super video.

The question is, how do i know if i recorded by DV or Super video on the Philips recorder? I honestly didn't notice any differences in the video. But I left the specs here. Text 01 and Text 02


So, Text 01, I was sure I recorded it on DV, because I used the camcorder and DV output.

Text 02, I'm not sure if I recorded using super video or DV.


If anyone understands these notes, and can say if text 02 is from a recording made by DV or super video, I will thank you!

[dellsam34]

I don't see the need for all what you are doing since conversions from DV to mpeg-2 and vise versa are destructive, But generally you choose what to record to the DVD recorder in its input menu, The recording will always be mpeg-2.

[Caius]

I don't see the need for all what you are doing since conversions from DV to mpeg-2 and vise versa are destructive, But generally you choose what to record to the DVD recorder in its input menu, The recording will always be mpeg-2.

[Attachment 64246 - Click to enlarge] Sorry its in portuguese but is: default recording source = DV

So it was recorded in DV? All I want is a better quality than super video or RCA connectors, even if it's like 5% more.

[dellsam34]

The source is the input not the recording format, So your DVD recorder is taking a DV input, converting it to MPEG-2 and recording it to DVD or HDD. No, this is nowhere near better quality. If you explain what you are trying to do maybe we can help you achieve better quality, but with less information like in the D-VHS thread no one will be able to help you. I understand English is not your primary language but with translation you could still express what you are trying to achieve.

[Caius]

The source is the input not the recording format, So your DVD recorder is taking a DV input, converting it to MPEG-2 and recording it to DVD or HDD. No, this is nowhere near better quality. If you explain what you are trying to do maybe we can help you achieve better quality, but with less information like in the D-VHS thread no one will be able to help you. I understand English is not your primary language but with translation you could still express what you are trying to achieve.

yes, i got the english text wrong in some things, where i put ''you'' it should be ''i''... I fixed.

So, did you mean that I was able to record through the DV output of the DVhs?


If so, then this DV output of the d-vhs is not having problems, but the computer's capture card.

[dellsam34]

D-VHS is MPEG-2 not DV, though some have the capability to record from a DV camcorder. Again not enough information.

[Caius]

D-VHS is MPEG-2 not DV, though some have the capability to record from a DV camcorder. Again not enough information.

All i want to know is if the output i-link, firewire, dv (i dont know which one is correct) from the D-Vhs is working!

So, I put the dv cable (pic01) on the dvhs (both extremities are DV) and connected it to the philips recorder and recorded! But there was no video or sound, only if I monitored by super video or RCA


[Attachment 64284 - Click to enlarge]

[ConsumerDV]

So, you did the following:

• recorded video off a DV camcorder to your DVD recorder via DV link and you SAW the picture through the DVD recorder
• recorded video off a D-VHS player to your DVD recorder via DV link and you did NOT see the picture through the DVD recorder, so you additionally connected it via SVideo to see the picture.

Since both of your files are recorded by the DVD recorder, they are MPEG-2 files and it is not possible to tell which source they were encoded from. But if both of them recorded successfully, and you see the picture, it is good.

You posted the screenshot above that says that default input is DV. So I assume it recorded from DV input. Felicidades! But... Did you SEE the image when you recorded off the DV camcorder? If yes, then I wonder why you did not see it when you recorded off a D-VHS player. This is weird. If that DV stream was not compatible, how did it record it after all? If it was compatible, why it did not show it? Hmm.

[Cornucopia]

Could be a form of copy protection on the dv output of the dvhs.


Scott

[ConsumerDV]

Could be a form of copy protection on the dv output of the dvhs.

A form of copy protection that would not show it but would still record it?

Caius, what if you record off D-VHS with SVideo disconnected? Does it record anything?

[dellsam34]

He's been fiddling with this for ages, his problem is lack of understanding and following instructions as well as not being able to express what he is doing, I've been trying to help him across several threads he created to no avail, Oh well sometime it is what it is. First he should read and understand how to use the D-VHS deck he has from its manual, I'm pretty sure there is a Spanish version.

[Cornucopia]

Honestly, it's been hard to follow just what he/she has been able to do or not do. Sounded to me like he/she was able to see DV from cam but not see DV from DVHS. If it records both, what's the gripe? (just use a different pathway for viewing). Lots of equipment doesn't have preview when recording. If it only records what it can see, that's what I was referring to. Either way, DVD recorder will record as MPEG2.

Scott

[ConsumerDV]

Sounded to me like he/she was able to see DV from cam but not see DV from DVHS. If it records both, what's the gripe?

The gripe is why it feels the feed is good enough to record it but not to display? I would gripe as well

[dellsam34]

His problem is the inability to connect the D-VHS deck to computer, instead of following the instructions we gave him across multiple threads to isolate the problem he chose to experiment his way even when he doesn't know what he is doing.

[ConsumerDV]

His problem is the inability to connect the D-VHS deck to computer, instead of following the instructions we gave him across multiple threads to isolate the problem he chose to experiment his way even when he doesn't know what he is doing.

I don't think so. The way I understood it, when feeding a video through DV input from his camcorder he can SEE the image on a TV/monitor connected to his DVD recorder. But when feeding a video through DV input from his D-VHS VCR he CANNOT SEE the image on a TV/monitor connected to his DVD recorder, yet he still gets a recording; but he also used a parallel connection via SVideo to monitor the image. So I suggested to disconnect the SVideo cable and check whether the DVD recorder records anything.

[Caius]

So, you did the following:

• recorded video off a DV camcorder to your DVD recorder via DV link and you SAW the picture through the DVD recorder
• recorded video off a D-VHS player to your DVD recorder via DV link and you did NOT see the picture through the DVD recorder, so you additionally connected it via SVideo to see the picture.

Since both of your files are recorded by the DVD recorder, they are MPEG-2 files and it is not possible to tell which source they were encoded from. But if both of them recorded successfully, and you see the picture, it is good.

You posted the screenshot above that says that default input is DV. So I assume it recorded from DV input. Felicidades! But... Did you SEE the image when you recorded off the DV camcorder? If yes, then I wonder why you did not see it when you recorded off a D-VHS player. This is weird. If that DV stream was not compatible, how did it record it after all? If it was compatible, why it did not show it? Hmm.

Exactly, but I've been told that you can only monitor it from the PC, but the card that receives the firewire directly from the d-vhs is no longer working. The camcorder i could see the monitoring by the DVD recorder Dv source, yes it did.

But as you said, DV as default input was selected, so it must be recorded from DV right?

[Caius]

Could be a form of copy protection on the dv output of the dvhs.

A form of copy protection that would not show it but would still record it?

Caius, what if you record off D-VHS with SVideo disconnected? Does it record anything?

That i have to try yet, i will do tonight

[Caius]

His problem is the inability to connect the D-VHS deck to computer, instead of following the instructions we gave him across multiple threads to isolate the problem he chose to experiment his way even when he doesn't know what he is doing.

I don't think so. The way I understood it, when feeding a video through DV input from his camcorder he can SEE the image on a TV/monitor connected to his DVD recorder. But when feeding a video through DV input from his D-VHS VCR he CANNOT SEE the image on a TV/monitor connected to his DVD recorder, yet he still gets a recording; but he also used a parallel connection via SVideo to monitor the image. So I suggested to disconnect the SVideo cable and check whether the DVD recorder records anything.

Just trying to figure out what is damaged, the capture card on PC that receives the firewire, dv, i-link or the dv, firewire, i-link output from the d-vhs. I think I'm close to knowing the answers, thanks everyone, new tests tonight.

[Caius]

His problem is the inability to connect the D-VHS deck to computer, instead of following the instructions we gave him across multiple threads to isolate the problem he chose to experiment his way even when he doesn't know what he is doing.

I don't think so. The way I understood it, when feeding a video through DV input from his camcorder he can SEE the image on a TV/monitor connected to his DVD recorder. But when feeding a video through DV input from his D-VHS VCR he CANNOT SEE the image on a TV/monitor connected to his DVD recorder, yet he still gets a recording; but he also used a parallel connection via SVideo to monitor the image. So I suggested to disconnect the SVideo cable and check whether the DVD recorder records anything.

Then. No solution yet. It wasn't recording through the DV output of the DVhs, it was SVideo.

With the SVideo cable disconnected and also the RCA audio inputs and even though I selected DV in the dvd recorder (Pic 02) It was saying this on the DV screen (Pic 01) So, I reconnected the SVideo cable, but with the audio cables disconnected, put it to record even with the DV cable connected and this appeared on the screen (Pic 03). Then I checked the file and it was muted because I had disconnected the RCA audio.

With the camcorder connected to the DVD recorder with DV cable there is no problems, video and audio appear on the screen (Pic 04)

So... I guess again the problem is really in the D-Vhs DV output. Too bad and sad. ):


[Attachment 64301 - Click to enlarge]

[Attachment 64302 - Click to enlarge]

[Attachment 64303 - Click to enlarge]

[Attachment 64304 - Click to enlarge]

[Caius]

I found this on here: https://helpx.adobe.com/premiere-pro/kb/cant-capture-dv-hdv-video.html

[Attachment 64305 - Click to enlarge]

It has this on my JVC-HM-DH3000U too

Anyway. If someone from the English language wants to help me with this, I attached the manual in pdf.

[Caius]

[Attachment 64307 - Click to enlarge]

Reading posts here, I think this was my mistake with d-vhs, plugging and unplugging cables with pc on.

[dellsam34]

For the millionth time your D-VHS deck CANNOT output DV, it can only accept DV, but it can input and output MPEG-2 SD/HD signals, Your DVD recorder can only record DV from its iLink, it cannot recognize a MPEG-2 signal via iLink, that's a JVC proprietary signal format. Tired of chasing your tail yet?

[ConsumerDV]

From the manual:

This VCR uses a four-pin i.LINK connector to input and
output MPEG2 video signals, audio signals, and control
signals. The i.LINK connector is also used as an input
for DV compressed signals from the DV output of a
digital video camera.

So it outputs video as MPEG-2. I wonder how similar it is to HDV. Can your Philips machine accept MPEG-2 over i.Link? What model of the Philips DVD recorder you have?

[dellsam34]

DV/HDV over firewire is Sony proprietary, SD/HD MPEG-2 over firewire is JVC proprietary, Different bitrate, different horizontal resolution (1920 for HD vs 1440 for HDV).

[Alwyn]

DV/HDV over firewire is Sony proprietary

No, Canon does it too. HV20 - HV40. HDV>Firewire>Computer.

[Caius]

For the millionth time your D-VHS deck CANNOT output DV, it can only accept DV, but it can input and output MPEG-2 SD/HD signals, Your DVD recorder can only record DV from its iLink, it cannot recognize a MPEG-2 signal via iLink, that's a JVC proprietary signal format. Tired of chasing your tail yet?

But that still doesn't answer my main question. HOW TO KNOW IF THIS IN THE (Pic D-Vhs) IS DAMAGED!!!


[Attachment 64308 - Click to enlarge]

[ConsumerDV]

DV/HDV over firewire is Sony proprietary, SD/HD MPEG-2 over firewire is JVC proprietary, Different bitrate, different horizontal resolution (1920 for HD vs 1440 for HDV).

HDV is MPEG-2. Sony and Canon used 1080, JVC used 720, I have no idea what Sharp used.

I would assume that a decent device would accept different resolutions and frame sizes within certain profile and level. Interesting that JVC had several HDD-based consumer camcorders that used several subtypes of MPEG-2 for SD and HD, and one of these was basically a file-based 1080i - not 720p (!) - HDV. Too bad the OIS was complete garbage, traditional for JVC.

[ConsumerDV]

Caius, what is the model of your DVD recorder?

But that still doesn't answer my main question. HOW TO KNOW IF THIS IN THE (Pic D-Vhs) IS DAMAGED!!!

Have you tried recording onto D-VHS off your DV camcorder?

[Caius]

From the manual:

This VCR uses a four-pin i.LINK connector to input and
output MPEG2 video signals, audio signals, and control
signals. The i.LINK connector is also used as an input
for DV compressed signals from the DV output of a
digital video camera.

So it outputs video as MPEG-2. I wonder how similar it is to HDV. Can your Philips machine accept MPEG-2 over i.Link? What model of the Philips DVD recorder you have?

Philips DVDR 3355

[Attachment 64309 - Click to enlarge]

[Caius]

Caius, what is the model of your DVD recorder?

But that still doesn't answer my main question. HOW TO KNOW IF THIS IN THE (Pic D-Vhs) IS DAMAGED!!!

Have you tried recording onto D-VHS off your DV camcorder?

How do i do this??? I still haven't connected the camcorder to the D-vhs for fear of damaging it (fear of damaging the camcorder)


[Attachment 64310 - Click to enlarge] Philips DVDR 3355