Patching SVCD to DVD question

[zanos]

I know you can pretty much patch any svcd so that it can authored to dvd in TDA but what do you do when the file is larger than 1 gb? TIA

[mats.hogberg]

? Why should the source file size matter? If you're thinking about the 1 GB VOB file size limit, TDA will take care of that.
And how could a SVCD mpg be > 1 GB - as a CD is limited to 800 MB?

/Mats

[mats.hogberg]

It could be a SVCD compliant mpeg2 file (no 800 MB sizelimit).

True, but then - why create a SVCD compliant file if it wasn't intended to go to a CD? Anyway, it's just an academic question, as the only size requirement for a DVD source file is that it doesn't exceed the size of the media. (Minus menus and other overhead)

/Mats

[jman98]

?And how could a SVCD mpg be > 1 GB - as a CD is limited to 800 MB?

/Mats

It could be a SVCD compliant mpeg2 file (no 800 MB sizelimit).

It could also be an SVCD split across multiple CD-Rs but joined together into one file in preparation for making a DVD.

[mats.hogberg]

Yes, yes, OK, OK. Many explanations. You shouldn't join source files prior to authoring - let TDA handle that. And again: Source file size is irrelevant, as long as it will fit the media.

/Mats

[zanos]

? Why should the source file size matter? If you're thinking about the 1 GB VOB file size limit, TDA will take care of that.
And how could a SVCD mpg be > 1 GB - as a CD is limited to 800 MB?

/Mats

I want to combine 2 800 mb files. Unfortunately you cannot properly patch something like that. You can only successfully patch single svcd files under 1 GB in TDA.

[mats.hogberg]

Huh? What do you use to patch it?
You mean you have one single 2800 MB SVCD specs mpg file, and that can't be patched so TDA accepts it as source mtrl?

/Mats

[TBoneit]

Add the files seperately as chapters under one title. Patch each one before adding. then unpatch before chaptering them if you want to add chapters.

There will be a slight hesitation where the first file ends and teh second file starts. Unless you use something like VideoReDo to join before patching and adding.

I myself would use VideoReDo as it will Assemble the two files into one file quite nicely,

[EddyH]

i think zanos missed a 'x' out and actually meant two files of 800mb each... i.e. a single movie split across two discs, for a total of 1600mb.. I'd be tempted myself to try and shrink that to fit an 8cm disc (why not? hehe), or get two others and do a mild shrink to get all three on the one 4480mb disc.

at this point i'd suggest having a go with a DVDAuthor-based utility, as the ones i tried quite happily sucked up a standard SVCD-rip video file - and it played fine, at least after i stripped, 48khz converted, and muxed the audio stream back without much difficulty in external tools (in fact... didn't need to bother with the remux it turns out as most of the DVDA GUIs do it for you)
(it still burnt it ok with 44.1khz, but it caused strange things to happen in the player)

keep the two files seperate as otherwise stated, and have one lead directly to the second with a straight jump and a zero delay

[TBoneit]

TDA as he mentioned will actually convert the audio to 48Khz. It will even convert to AC3 in 1.5 and newer if you have the AC3 plugin.

[zanos]

i think zanos missed a 'x' out and actually meant two files of 800mb each... i.e. a single movie split across two discs, for a total of 1600mb.. I'd be tempted myself to try and shrink that to fit an 8cm disc (why not? hehe), or get two others and do a mild shrink to get all three on the one 4480mb disc.

at this point i'd suggest having a go with a DVDAuthor-based utility, as the ones i tried quite happily sucked up a standard SVCD-rip video file - and it played fine, at least after i stripped, 48khz converted, and muxed the audio stream back without much difficulty in external tools (in fact... didn't need to bother with the remux it turns out as most of the DVDA GUIs do it for you)
(it still burnt it ok with 44.1khz, but it caused strange things to happen in the player)

keep the two files seperate as otherwise stated, and have one lead directly to the second with a straight jump and a zero delay

Yes I'm talking about TWO 800 mb files. However if you patch them and put them together in TDA and repatch them back to 480x480 after it finishes compiling the picture is all screwed up on the second svcd file.

[mats.hogberg]

I've done this a few times, and haven't had any reason to patch back, besides the menu thumbnails look a little odd, which I can live with.

/Mats

[zanos]

If you don't patch it back to 480x480 you're guaranteeing yourself a screwed up picture.

[mats.hogberg]

Like I said, I did not get a screwed up picture. Only anomaly was that the thumbnails had a blue (or was it green?) right edge. Obviously YMMV, but that's a general thing with playback of patched (back or not) non DVD compliant material.

/Mats

[Alex_ander]

Depends on player model (some use just AR numbers, some use pixel numbers to calculate horisontal stretching data). Of course, it's more safe to patch VOBs back, you lose nothing at this.
Potentially, there can also be problems from ifo's - they seem to contain pixel numbers: I recently used MPC for testing a DVD with VOBs completely patched back to 480x576 - it still showed fake pixel numbers from TDA authoring. It didn't depend on whether patching back was applied before or after outputting TDA project (it comes into ifo's from project settings). Fortunately, never had problems from this on standalone.

[Alex_ander]

Yes I'm talking about TWO 800 mb files. However if you patch them and put them together in TDA and repatch them back to 480x480 after it finishes compiling the picture is all screwed up on the second svcd file.

Are you using DVDPatcher with 'patch whole file' option? Try to patch back after authoring (most guides recommend so). What happens to bigger files ( I've used >2GB without a problem)?

[zanos]

Yes I'm talking about TWO 800 mb files. However if you patch them and put them together in TDA and repatch them back to 480x480 after it finishes compiling the picture is all screwed up on the second svcd file.

Are you using DVDPatcher with 'patch whole file' option? Try to patch back after authoring (most guides recommend so). What happens to bigger files ( I've used >2GB without a problem)?

I'm using dvd patcher 1.06. Unless you're doing something different I don't see why you would be able to successfully patch vob files over 1 gb in tda.

[mats.hogberg]

Now wait a minute - VOB files > 1 GB shouldn't exist?!?

/Mats

[TBoneit]

In one sense you are totally right they can't exist on a standard DVD. Howver as a file not a problem.

They can exist and will even play in PowerDVD or VLC. They can be authored into a Standard DVD where the Authoring application will slice them into the .99Gb standard size. Just as a test I extracted a DVD to one big VOB and then added it to TDA1.5 and created a True DVD structured DVD with it.

They are against DVD spec true. OTOH since authoring them just makes them the right size and creates the proper structure.....

Cheers

[mats.hogberg]

I know I'm splitting hairs now, but then a VOB without it's DVD shouldn't exist either. The format was invented for use on Video DVD exclusively. That this or that app manages to make use of a VOB file doesn't alter that. Just like a AVSEQ??.DAT only make sense when on a VCD.

/Mats

[TBoneit]

That I'll go along with.

I'll go further and say I suspect that they mainly exist on P2P. Even then why they don't just extract to a large mpg file is something I don't understand.

Their only advantage would be to be movie only with no quality drop at all.

Howver I think extracting the mpg from them would result in a smaller file. I believe there is an overhead in a VOB file... I could also be wrong on that as I never tested it.

I'm pretty sure VideoReDo will input a VOB and output a mpg. Maybe tonight at home just as a test if I remember.

[mats.hogberg]

I'm pretty sure VideoReDo will input a VOB and output a mpg. Maybe tonight at home just as a test if I remember.

If nothing else VOB2MPG will. Even a VOB set to single mpg.

/Mats

[TBoneit]

I'll go one step further and say the while I have done DVB to DVD as well as SVCD to DVD. That can cause complications/extra work if you want to reuse any of that footage as You will have to repatch to use it over.

The patched DVB and SVCD do play fine in every player I've tested them in. Apex single and 3 disc changer, Philips Divx players, Sony 5 disc and 400 disc changer. Nowdays I use the 5 disc for music videos or music CDs.

However I have doubt that one of these days that may change and by then the deferred conversion will have to be done. OTOH by then I'll have an even faster computer.