or Connect
AVS › AVS Forum › HDTV › HDTV Recorders › So what's wrong with D-VHS?
New Posts  All Forums:Forum Nav:

So what's wrong with D-VHS? - Page 7  

post #181 of 251
Let me ask a question to clarify something. The Mitsubishi can record HD via Firewire but can only output HD via firewire. Can I hook the firewire from a Mits deck to the firewire on a (dead) JVC deck and then the JVC Compnent output to the TV and watch tapes on the Mits?
post #182 of 251
Yes.
Should be able to set JVC to input from firewire, and display on component.
Shouldn't need to be actively "recording" anything to view.
post #183 of 251
Should be able to as long as the deck functions enough for MPEG2 decoding and component output.
post #184 of 251
Quote:
Originally Posted by videobruce
I have read the older D-VHS thread. :rolleyes:
You are lucky...........
I have a 30k and a 40k, with the 30k being over a year old and the 40k I got off e-bay, so it too is somewhere neara year old.

Both are working great.

I will be using them a lot less now that I have a PeeCee set up to do HD recording directly to disc, via the MyHD 130 OTA card and the Twinhan 1030A for DVB-S HD recording. I'll be archiving to DVD-ROM (no, not converting the HD material to DVD video).

One thing I discovered just a few minutes ago, after installing capDVHS, is that the 30k has no problem accepting and passing through the 40Mb rate that ABC uses. Doesn't record it worth a crap, but that is expected :)
post #185 of 251
Quote:
Originally Posted by sierrabob
Microsoft tampered with the IEEE1394 standard way back when they released Windows XP SP2, making Firewire 400 specific devices unusable. This upgrade inhibited transport stream capture through firewire using DVHSTool or CAPDVHS.

So, in summary, avoid SP2 and XP64, follow the details for DVHSTool setup (but use CAPDVHS instead), connect your firewire devices (but not when they're both "hot"), then go for it. Very simple (when you avoid known pratfalls).
Guess my relatively new (a couple of months) AMD XP64 Dual Core 4800+ system, with XP & SP2, doesn't know about the firewire problem.

I have a 30K attached to the firewire, which installed just fine. I've used TSReader with the D-VHS firewire plugin to transfer a bunch of tapes to the computer. Other than tape read glitches, I've had zero problems.

A little bit ago, I installed capDVHS to send stuff through the deck to record onto VHS tape for someone who needs copies of some programs, because the person missed them. Plus, they get them in letterbox, since the original OTA analog was fullscreen :)

In any event, capDVHS had zero program sending a file back through the 30K. For the hell-uv-it, I even sent through the deck a 42Mb TS HD file that the 30K has no problem decoding and displaying. Of course it wouldn't record it, but it actually did better than I thought :)

So, if there is a problem getting to and from my 30k, my system doesn't know about it.
post #186 of 251
Quote:
Originally Posted by Clarence
Well, somewhere between installing Microsoft's firewire patch for XP SP2 and installing DVHSTool and a restart, now CapDVHS playsback fine.
My memory is failing me, I'm not sure if I installed the MS firewire patch or not. Of the CDs that I made to install stuff, I don't see one that indicates a patch is on it. Do you know where I can look on the system to see if the patch is installed?
post #187 of 251
Quote:
Originally Posted by efranzen
Personally however I just stick with the D-VHS blanks. The savings achieved with S-VHS is only a couple of dollars per tape which doesn't bother me.
Ya want D-VHS tape? Head on over to http://taperesources.com and get a case of Maxell DF-300 for $69.90. I've found that the Maxell D-VHS tape worked many times better than the JVC brand D-VHS tapes in my two JVC D-VHS decks.

I won't have to buy D-VHS tape for a long time, since I've transferred several tapes to HDD and will be archiving onto DVD-ROM.
post #188 of 251
No patches of any kind are required to use D-VHS decks via firewire on Windows XP, SP1 or SP2. If someone told you that you "need" a patch to get it to work, they're lying.

Also all those people who complain how firewire is "totally broken" in SP2 are full of it, I have 6, yes 6 devices in my firewire network and they all work great. (this includes a Windows XP SP2 PC).
post #189 of 251
Quote:
Originally Posted by timecop
No patches of any kind are required to use D-VHS decks via firewire on Windows XP, SP1 or SP2. If someone told you that you "need" a patch to get it to work, they're lying.

Also all those people who complain how firewire is "totally broken" in SP2 are full of it, I have 6, yes 6 devices in my firewire network and they all work great. (this includes a Windows XP SP2 PC).
Ya, well you may think it isn't broken, but I'm beginning to believe that it is.

I've had no problem getting stuff from D-VHS tape to the computer, via TSReader, but getting stuff back to the deck, even just to use it as a MPEG-2 converter to 480i, has been a disaster. I've got files that will cause both CapDVHS and DVBHSTool to crash XP-SP2. Yes, you read that right, it crashes XP such that it goes and does a reboot.

Right now it is in a state where nothing will play out the firewire. What caused that? I played a TP recording I made tonight from my MyHD 130 OTA DTV card via capDVHS. It got about a minute into playing it when the screen went black and capDVHS was a dead duck. Telling it to quit brought up the XP "the program died, do you want to send a report GUI." After that, attempting to play a file via capDVHS or DVHStool results in nothing happening. I'll have to reboot the computer again.

It also appears that I can't leave the JVC 30k deck on when I reboot, as it tends to get into a "too many I-links" error condition as well.

Lucky you that it works. Unlucky me, because it doesn't. :(
post #190 of 251
"Getting data back to tape" requires a very tricky process which re-inserts SP header into the MPEG2TS stream going to D-VHS deck. SP header is timestamps, syncronized with firewire clock and MPEG2TS timestamps, and calculating these properly is rather tricky. The only existing piece of code which can do this more or less correctly is TSP2SP directshow filter, which is used by both DVHSTool and CapDVHS when sending stuff back to tape.

Also, you're saying that you capture files from OTA, and want to send them to D-VHS for viewing? Isn't the OTA stuff padded to a given bitrate, and you have to strip null PID or something, or re-pad it to appropriate D-VHS bitrate, etc? That could very well be the cause of your problems. Also is CPU being overloaded by any of these processes? Are you using official MSTAPE d-vhs driver, or did you install some "old win98/me/2k" DVHS driver like the other guy in HC3 thread?

Sorry to hear about your JVC troubles, perhaps dr1394 or someone from JVC could explain why that is happening on your devices.
post #191 of 251
Quote:
Originally Posted by timecop
"Getting data back to tape" requires a very tricky process which re-inserts SP header into the MPEG2TS stream going to D-VHS deck. SP header is timestamps, syncronized with firewire clock and MPEG2TS timestamps, and calculating these properly is rather tricky. The only existing piece of code which can do this more or less correctly is TSP2SP directshow filter, which is used by both DVHSTool and CapDVHS when sending stuff back to tape.
Thanks the the educational piece as to what is happening. I knew some of the pieces, but not assembled in this manner.

Quote:
Also, you're saying that you capture files from OTA, and want to send them to D-VHS for viewing? Isn't the OTA stuff padded to a given bitrate, and you have to strip null PID or something, or re-pad it to appropriate D-VHS bitrate, etc? That could very well be the cause of your problems. Also is CPU being overloaded by any of these processes? Are you using official MSTAPE d-vhs driver, or did you install some "old win98/me/2k" DVHS driver like the other guy in HC3 thread?
Correct, there are null packets in the OTA transmission (DVB as well). I have a Athlon dual core X2 64 4800+. The offical XP stuff is installed. I'll have to double-check, but I think I only used capDVHS with the OTA file. That is because it locked up firewire from working with DVHSTool, which has an option setting to strip null packets. I'll reboot the computer to get firewire working again and try the file with D-VHS tool. The reason for using the raw file is to eliminate VideoReDo from being the cause of the problem.

Quote:
Sorry to hear about your JVC troubles, perhaps dr1394 or someone from JVC could explain why that is happening on your devices.
Sorry, don't know dr1394. Where does s/he normally hang out. This isn't a JVC problem. It is the XP box handling of the output that is the problem. The JVC 40k will take whatever is thrown at it. By that I mean I've fed 41Mbps video at it that it will happily decode and display. Recording, well that is another matter altogether. The fact that it actually even attempted to record that bitrate and actually put something on tape amazed me. But I just need it as a way to make tapes for someone who missed a show that I have on the computer.

The video card I have is set up for dual display. The second display is via the composite video output and it set for 480i. The only program I have that I can pull into that window and play fiull screen is VideoLanClient. Problem is that the video is not smooth. It is extremely "jerky." If you know of a non-jerky player, let me know and I'll give it a try and stop fussing with firewire.

The archiving of programming will be via DVD-ROM, not tape. (Where's Hi-Def DVDs when you need them? :) )
post #192 of 251
Quote:
Originally Posted by timecop
Are you using official MSTAPE d-vhs driver, or did you install some "old win98/me/2k" DVHS driver like the other guy in HC3 thread?
BTW, is there a quick way to check, just to make sure that somehow I got the wrong thing on the system?
post #193 of 251
Well, I played the raw video through DVHSTool and it too stopped sending stuff out the firewire about 3 minutes into the file. While DVHSTool didn't crash, restarting it, turning the deck off/on, does not allow any further firewire output to the deck. I'm done rebooting (at the moment for this problem).

The other part that sucks, which I also mentioned, the reboot and reconfiguring of XP many a time will cause the JVC to complain about too many iLinks, which is horse crap, since there are only two other devices attached; the computer and the Samsung STB. It is real tough getting it out of that mode.

I am extremely unimpressed with MicroCrap's implementation of firewire (which does not surprise me at all, as they have screwed up so many drivers, instead of letting third parties get it right).
post #194 of 251
I've had no luck trying to buy a usable JVC 30k on Ebay so now I'm looking at buying a new 5U. All I'm interested in it for is converting my old VHS tapes to digital. They lose audio sync when played on a standard deck into a digital converter so I'm hoping that the built-in frame stabilizer and time-base corrector will fix this.

Can the firewire output on the 5U be captured on my XP machine the same as I've heard about on the 30k? For my purposes, is there any reason to buy the newer D100 instead of the 5U?
post #195 of 251
Quote:
Originally Posted by sdsalsero
<snip>
Can the firewire output on the 5U be captured on my XP machine the same as I've heard about on the 30k? For my purposes, is there any reason to buy the newer D100 instead of the 5U?
I got a factory refurb 30k from ecost. It looks like new! They run specials from time to time. I've mostly used it with my Mac mini, but have also done some I/O (both ways) to my XP HTPC. You can bypass the tape and just do firewire as the 30k is a good general purpose mpeg2 hard codec. This feature isn't promoted in the user manual, but it works okay. Just to be sure you get into HD mode, it's handy to have a DVHS tape to insert into the deck, but you don't actually have to record to tape--the 30k just encodes the source input and streams it out the firewire port. None of the three 30k mpeg2 modes are DVD "ready," however. You must recompress/encode again, if your final target is a DVD.
post #196 of 251
Quote:
Originally Posted by mrvideo
I am extremely unimpressed with MicroCrap's implementation of firewire (which does not surprise me at all, as they have screwed up so many drivers, instead of letting third parties get it right).
I have both Macs and Windows machines. There is no doubt the Macs are vastly superior WRT firewire! Better connectivity/link recognition, better speed, better firewire ap stability. There's no comparison.
post #197 of 251
If you hook a 5U to a JVC set, which is doing the 'timer' part, the TV or the recorder?
IOW's the TV has the ability to do a timer recording with a AV HDD (doesn't it?) and so does the recorder. Which do you set?
post #198 of 251
Quote:
Originally Posted by calinb
I have both Macs and Windows machines. There is no doubt the Macs are vastly superior WRT firewire! Better connectivity/link recognition, better speed, better firewire ap stability. There's no comparison.
Makes total sense, considering that the OS under the hood is Unix.
post #199 of 251
Quote:
Originally Posted by videobruce
If you hook a 5U to a JVC set, which is doing the 'timer' part, the TV or the recorder?
IOW's the TV has the ability to do a timer recording with a AV HDD (doesn't it?) and so does the recorder. Which do you set?
The design is that the receiver does the controlling. The two decks that I have, the 30K and the 40K, the decks cannot under any circumstances setup a timer firewire recording, only an analog recording via the OTA analog tuner or via the analog NTSC inputs.

Since it is a JVC set, it should know about its D-VHS decks. Consult the manual to be sure.
post #200 of 251
The D100(?) has a built-in HD tuner, which simplifies recording OTA HD.
post #201 of 251
Quote:
Originally Posted by shugazer9
The D100(?) has a built-in HD tuner, which simplifies recording OTA HD.
Which would probably be the best way to go. The display might only be able to accept incoming firewire from a D-VHS deck. That is why I said to consult the manual.

JVC manuals are normally pretty good. If it can set up a D-VHS deck for recording, there will be a section devoted to doing just that.
post #202 of 251
It's surprising that the deck doesn't control the timer function since it already has the feature for analog.................
post #203 of 251
Quote:
Originally Posted by videobruce
It's surprising that the deck doesn't control the timer function since it already has the feature for analog.................
For the same reason that the D-VHS decks do not attempt to control the STB, it can't control a HD display with a built in DTV tuner. There is a lot more to trying to get a STB to tune a channel than it is for the STB to just turn on the D-VHS and put it into record.

You'd think between two JVC products a protocol could be devised to do just that. Guess not.
post #204 of 251
Anyone know of any issue with Sammy DLP's that have firewire?
post #205 of 251
Quote:
Originally Posted by videobruce
It's surprising that the deck doesn't control the timer function since it already has the feature for analog.................
The STB controls the recording for digital recordings. Since the STB has to keep track of time and set the channels it also then tells the DVHS to record. This appears to be the way the firewire protocols were devised. Works fine for me.

It only is a problem when the STB manufacturers decides not to implement these protocols... which apparently many cable STB manufacturers do not.

Rick R
post #206 of 251
Quote:
It only is a problem when the STB manufacturers decides not to implement these protocols... which apparently many cable STB manufacturers do not.
...........which is enough reason that the recording device should.

Hollywood is f***ing us every way they can with their copy protection bulls***.
post #207 of 251
In case it has not been mentioned yet, the VCR Programmer (Model 15-1996) from RadioShack can be used to perform timed recordings. Although it has been discontinued, some stores might still have them in stock.
post #208 of 251
Just returned from Japan. I could not find any D-VHS decks in shop anymore. To replace it, Japanese is using HDD recorder to record 1080i footage. Look like D-VHS already died.
post #209 of 251
Erik commented:
> the VCR Programmer (Model 15-1996) from RadioShack can be used to perform timed recordings <

Good pointer. These are dirt cheap, and do the job.

A couple negatives folks need to be aware of:
- one event only,
- duration in 30-min chunks (or open-ended)
- requires the D-VHS deck to be turned OFF prior to recording
- easy to think it's primed and ready to record, but doesn't (very non-intuitive)
- the batteries will die with no (or minimal) warning
(so if you get a hint they're marginal, change them immediately)

Other than that, they do the job. It's far from my favorite, but since I have 2 JVCs I do regular timed firewire recordings from, this handles deck2 independently from deck1 just fine.

- Tim
post #210 of 251
So are there any other inexpensive remotes out there that can do timer recordings? I would like one that can learn a few commands and then do a macros.

The Sony 3100 looks like it can do it, but its around $80.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: HDTV Recorders
This thread is locked  
AVS › AVS Forum › HDTV › HDTV Recorders › So what's wrong with D-VHS?