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Posted by Jeff on 12/18/07 17:28
janet <janl_d@sbcglobal.net> wrote in
news:_wK9j.130$se5.85@nlpi069.nbdc.sbc.com:
> On Mon, 17 Dec 2007 13:44:13 -0800, Bill's News wrote:
>> With IFO files, there is no
>> semantic issue regarding DATA or VIDEO.
>
> Hi again Bill's News,
>
> From my practical standpoint, meaning I do what works and that doesn't
> mean I understand things - the information (IFO) files are just
> another file inside the VIDEO_TS directory (along with the backup
> (BUP) to the information files, and the 1GB video (VOB) files
> themselves).
>
> So, from my practical sense, the VIDEO_TS directory just contains
> "stuff".
>
> When I burn that VIDEO_TS "stuff" to the root of a DVD disc, I get a
> playable DVD. With ImgBurn, I just burn the VIDEO_TS directory like I
> would any other data.
>
> But with Nero, I apparently had to do hokey pokey and not call it data
> but call it a DVD and go through menus and hoops and bells and
> whistles, and only then did Nero create a working DVD. It was so much
> work, I scrapped Nero and wondered why on earth anyone ever used that
> crap in the first place.
>
So much work? There is a single menu to select "burn dvd-files" where a
window opens to drag the VIDEO_TS folder into. Then you just click "next"
and "burn" and you are done.
> Now, I admit I don't understand any of this stuff - so that's why I
> persist in asking why Nero needs a special button called "DVD" where
> ImgBurn doesn't need anything special to burn DVD data as a DVD.
>
It's a matter of programing philosophy. ImgBurn sees that it is burning a
VIDEO_TS folder and assumes the user doesn't know any better and burns it
as a DVD (which could also function as a data disc anyway if that
assumption was incorrect). On the other hand, Nero assumes the user knows
there is a difference between the two and leaves it up to the user to
choose which type of disc they wish to burn.
> Are you saying that a VIDEO_TS directory doesn't have to contain an
> IFO file? ANd, if it doesn't contain an IFO file, then Nero somehow
> magically creates that IFO file?
>
He is saying that a VIDEO_TS folder MUST have an IFO file. That is why the
mentioned programs can create one if it is missing. Nero does not create
an IFO file if it is missing. Again, Nero assumes the user knows what he
is doing and has properly authored the DVD and included the necessary files
in the folder.
The IFO files are not unnecessary stuff. They contain the data about frame
rates, region number, aspect ratio, chapter breaks and other things that a
standalone must player must have in order to play the disc.
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