IFO Edit and default VOB size question

[Paulcat]

When using the author dvd option in IFO Edit, it creates a vob with a maximum 1 GB file size and splits vobs into parts if they are too large.

Apart from re-doing the vobs with the vob extras option, can I set IFO Edit to a default of "no split" (or whatever) so that I can keep a single vob and let me skip this step?

[2COOL]

Originally posted by Paulcat
When using the author dvd option in IFO Edit, it creates a vob with a maximum 1 GB file size and splits vobs into parts if they are too large.

Apart from re-doing the vobs with the vob extras option, can I set IFO Edit to a default of "no split" (or whatever) so that I can keep a single vob and let me skip this step? You can do it but what's your reason for doing so? If you merged to one big VOB, you would be out of DVD specs and your standalone wouldn't play it.

[jsoto]

and let me skip this step One of the best things of IFOEdit/Muxman authoring is that there is no an additional step for this. IFOEdit and Muxman do two steps, but this is due the need to backfilll the nav packs: you need to know the data on the following packs to fill the previous ones, so two step are needed in any case.
jsoto

[Paulcat]

Originally posted by 2COOL
You can do it but what's your reason for doing so? If you merged to one big VOB, you would be out of DVD specs and your standalone wouldn't play it.

The size restriction of 1GB has to do with allowing people with different operating systems to work on the files. I can make a dvd with a 4GB vob and will still play on any dvd player. I was doing an episodic tv dvd and wanted to keep one vob/episode, that's all.

[jsoto]

I can make a dvd with a 4GB vob and will still play on any dvd player. This is not my understanding... But what is true is you can concatenate the files, i.e:

copy /b VTS_01_1.VOB+VTS_01_2.VOB+VTS_01_3.VOB VTS_01_1_NEW.VOB

And all the IFO pointers still are valid. This is absolutely true in the final VOB is less than 1 GB, but I believe you will be in trouble if it becomes larger.

jsoto

[2COOL]

Originally posted by Paulcat
The size restriction of 1GB has to do with allowing people with different operating systems to work on the files. I can make a dvd with a 4GB vob and will still play on any dvd player.I don't think it the OS is entirely the problem. IMO, it's the player that will give you problems. I've tried in the past and it didn't properly play for me on my Sony standalone.

[Sir Didymus]

Just confirming:

DVD-Video filesystem is a subset of the UDF format.

The specification for UDF requires (limits ?) filesize up to 2^64-1 bytes.

Nevertheless the restriction in the DVD-Video filesystem, is defining DVD-Video file sizes up to 1GB.

See for example...
http://www.disctronics.co.uk/technology/dvdintro/dvd_filesys.htm

[mpucoder]

Originally posted by Paulcat
The size restriction of 1GB has to do with allowing people with different operating systems to work on the files.
That is the correct reasoning behind the requirement, but it is still a requirement to be in spec.
And while most current DVD players do not examine the file system beyond finding VIDEO_TS.IFO if they are playing DVD-Video, there is no guarantee that future players will behave this way. You may also have difficulty with several burning softwares accepting the files or allocating them correctly.