Duration per media?

[1gnition]

Hello, this is my first message.

I am making my first VHS to DVD capture these days using this guide.

1. In the capturing stage, the author does not state which video compression should be used. However, according to his software list it should be Huffyuv because it is one of the codecs needed. Moreover, I don't think he meant to capture 90 mins of video without any compression. Am I right?

2. Assuming that I am capturing using PAL standard, 720x576, with 192 kbits mono audio - How much time of footage can I burn on a DVD5 blank media (4.7 GB)?

And for finale: I think this guide is a bit short on processing and filters. Any more suggestions for the Avysynth script? what to add, and how?

Thanks!

[SingSing]

Most people fit one to two hours of video per 4.7GB DVDR.

1. All DVD video are compressed.

2. The length of video per DVD is depends on the compression ratio. You can used a tool like DVD shrink, to compress the video to fit the DVD with the least compression.

[manono]

You can used a tool like DVD shrink, to compress the video to fit the DVD with the least compression.

If he caps in HuffYUV, then DVDShrink won't be of much use to him. I would argue if he ever feels he needs DVDShrink for anything, then he did something wrong somewhere along the line, like figuring the bitrate incorrectly.

I see that guide recommends using Bob().SelectOdd() to deinterlace. Deinterlacing interlaced footage for DVD isn't such a good idea, and if I did decide to deinterlace for some reason, the Bob filter would be the last filter I'd choose to use.

Moreover, I don't think he meant to capture 90 mins of video without any compression. Am I right?

I don't know what he intends either. A quick read of the guide also leaves me unsure of what codec he's using to cap. But while HuffYUV is lossless, it isn't uncompressed. It's as good as any, I supppose. I understand there are versions that allow you to cap in YV12. That would be preferred if the end is to be DVD. Others know more about HuffYUV than I.

[redwudz]

The only thing I thought was odd in that guide: Line 12.

Audio->Raw capture format, select "PCM: 44100Hz, stereo, 16-bit" and OK

Maybe I missed something, but 48Khz would seem a better choice unless you are making a VCD.

I'm not knowledgeable about AviSynth, but for filters: http://avisynth.org/mediawiki/Main_Page#Filters.2C_external_plugins.2C_script_function..._and_utilities

HuffyUV seems a good choice for capture, but make sure you have lots of hard drive space.

Just me, but I usually use AC3 for final audio format, but in PAL land, MP2 is fine.

As mentioned in the guide, you use a bitrate calculator to set the encoding bitrate to your media size. 1 hour on a DVD is about maximum quality. But if your source is VHS, that's probably overkill, as VHS isn't high resolution to start with. If you need to get more than 2 hours on a DVD from a VHS source, you might consider 1/2 D1 format. With VHS sources, it's usually sufficient for longer videos.

For DVD format and specification, see 'WHAT IS' DVD to the upper left on this page.

And welcome to our forums.

[manono]

Yeah, that guide recommends capping the audio as 44,100 HZ WAV, and later he converts first to 48,000 HZ WAV before then encoding to MP2.

For a different take on the whole process, here's a very good capping guide. It also answers your questions about processing and filtering:

http://www.doom9.org/capture/start.html

[1gnition]

I see that guide recommends using Bob().SelectOdd() to deinterlace. Deinterlacing interlaced footage for DVD isn't such a good idea, and if I did decide to deinterlace for some reason, the Bob filter would be the last filter I'd choose to use.

Why not deinterlace an interlaced footage for DVD?
What's wrong with Bob?

Do you think this is a good guide? is there any other recommended guide?

[hunter99]

If these are VHS movies with closed captioning you will lose it
by deinterlacing and/or croping. That garbage at the bottom of the computer screen is other info recorded with the film, including CC info. Assuming you will be viewing the DVD's on a TV, the noise won't be seen. Why these guides have you deinterlace and crop, I don't know, provided again that thay are to be viewed on a TV.

[manono]

Why not deinterlace an interlaced footage for DVD?

Probably because it'll look worse on your TV than if you don't deinterlace.

What's wrong with Bob?

You'll instantly lose half of your resolution. There are much better AviSynth deinterlacers.

is there any other recommended guide?

I gave you one in my last post. I'm not saying that guide is no good. It just has some things that I (and redwudz, I think) find peculiar.

[1gnition]

If these are VHS movies with closed captioning you will lose it
by deinterlacing and/or croping. That garbage at the bottom of the computer screen is other info recorded with the film, including CC info. Assuming you will be viewing the DVD's on a TV, the noise won't be seen. Why these guides have you deinterlace and crop, I don't know, provided again that thay are to be viewed on a TV.

What is closed captioning and how do I know if a video tape is with closed captioning?
Is all of that true also for LCD monitors connected to a DVD?

Also: How the results look like with Doom9 capture guide? I see it is a bit out of date.

[jman98]

What is closed captioning and how do I know if a video tape is with closed captioning?
Is all of that true also for LCD monitors connected to a DVD?

Also: How the results look like with Doom9 capture guide? I see it is a bit out of date.

Closed captioning is like subtitles for deaf people. You have to turn it on to see it. Your video tape will say if it has closed captioning. Since you didn't know what it was, it's not important to you, so don't worry about whether or not your tapes have it.

Doom9's guides are usually good, but some of them can be a bit out of date too. And some of them have a bad habit of leaving out important steps or the software tools will change a lot since the guide was written and you'll find that the software program doesn't look like it does in the guide and you may have difficulty finding the options you want to set in the new version of the program.

Manono and redwudz are both experienced forum members and if they suggest a different way to do this, I'd advise listening to them.

[hunter99]

CC is is a function of your TV, that some confuse with subtitles.
See this link http://www.doom9.org/index.html?/capture/analogue_video.html
On your TV remote there should be a CC button.
Not all VHS material has CC.

Subtitles are a function of your DVD player.
Subtitle button on DVD remote.
It is a seperate file that is muxed into the MGP2 file when then the DVD is authored.
It can be demuxed and edited without much trouble.

Not so with CC, it can be done ,see above link.
Not worth the effort in MHO.

[hunter99]

Sorry wrong link
This should work http://www.doom9.org/capture/analogue_video.html