DVD-Video Problem

raymng · **Joined:** Mon Jun 06, 2005 1:47 pm **Posts:** 53

Okay, so my question is still here: Will it harm the DVD if I call "StarBurn_UDF_PatchIfoHeader()" even if I don't have the playability problem currently ?

anton (staff) · **Posted:** Sun Nov 13, 2005 12:51 pm

It *could* if you have very complex IFO file structure. That's why you need to patch IFOs only if you have problems with DVD playability on hardware players.

That's very easy to check w/o implementing StarBurn patching. Try to burn your DVD conent with Nero. If you'll have DIFFERENT IFOs in original compilation and it what Nero finally recorded - you NEED to apply IFO patching. If all IFOs would be binary identcal - your DVD authoring application generates zero-offset IFOs and they don't need to be patched.

raymng wrote:

8) Okay, so my question is still here: Will it harm the DVD if I call "StarBurn_UDF_PatchIfoHeader()" even if I don't have the playability problem currently ?

raymng · **Joined:** Mon Jun 06, 2005 1:47 pm **Posts:** 53

Quote:

If you'll have DIFFERENT IFOs in original compilation and it what Nero finally recorded - you NEED to apply IFO patching. If all IFOs would be binary identcal - your DVD authoring application generates zero-offset IFOs and they don't need to be patched.

Will Nero modify the IFO files on the hard drive? If Nero burn the modified IFO file to a DVD, it should have different filesize compare with the original one, right ?

Thanks for your detailed explanation so far. :wink:

anton (staff) · **Posted:** Sun Nov 13, 2005 1:49 pm

No. Compare files on original compilation and recorded DVD.

raymng wrote:

Quote:

If you'll have DIFFERENT IFOs in original compilation and it what Nero finally recorded - you NEED to apply IFO patching. If all IFOs would be binary identcal - your DVD authoring application generates zero-offset IFOs and they don't need to be patched.

Will Nero modify the IFO files on the hard drive? If Nero burn the modified IFO file to a DVD, it should have different filesize compare with the original one, right ?

Thanks for your detailed explanation so far. :wink:

raymng · **Joined:** Mon Jun 06, 2005 1:47 pm **Posts:** 53

Hello,

I have implemented as you suggested; allocating exact memory for operations. I tested the code, it seems working fine.

/////////////////////////////////
UDF_TREE_ITEM *l__UDF_TREE_ITEM__File = new UDF_TREE_ITEM[nDVDFilesCount + 1]; // File[ 0 ] is not used

...
...
...
StarBurn_UDF_CleanUp(
&l__UDF_TREE_ITEM__File[ 0 ],
nDVDFilesCount + 1 //100
);
//////////////////////////////////

Except allocating and cleaning up memory, any other code should be updated as well ??

Also, regarding the IFO patching issue, I sent you an email, please check.

Thanks.
Raymond

anton (staff) · **Posted:** Wed Nov 16, 2005 2:04 pm

Yes, that's the right way!

I'm checking it right now...

raymng wrote:

Hello,

I have implemented as you suggested; allocating exact memory for operations. I tested the code, it seems working fine.

/////////////////////////////////
UDF_TREE_ITEM *l__UDF_TREE_ITEM__File = new UDF_TREE_ITEM[nDVDFilesCount + 1]; // File[ 0 ] is not used

...
...
...
StarBurn_UDF_CleanUp(
&l__UDF_TREE_ITEM__File[ 0 ],
nDVDFilesCount + 1 //100
);
//////////////////////////////////

Except allocating and cleaning up memory, any other code should be updated as well ??

Also, regarding the IFO patching issue, I sent you an email, please check.

Thanks.
Raymond

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