Question about adding a folder to bluray structure

[mazinz]

Not sure if this is the correct forum but it seems close enough.

I do not have a blu burner. Some friends of mine have made personal/custom projects and created them in bluray format (with the bdmv and certificate folders).

The projects though in blu are small enough to fit on a dvd9. I know how to burn the blu on a dvd disc in imgburn

My question is that I know with dvd video structure I can add in an extra "rom folder" with info or other such notes pertaining to whatever the project is. However does adding such a folder on blu format invalidate it in anyway? I am not sure how strict the rules for burning have to be.

So if I burn a disc in imgburn, it would have all of these in the root of the disc
bdmv folder
certificate folder
EXTRAS folder that I add

would this still then be a valid disc or would the adding of the extra folder actually make it "non standard" (aside from burning it to a dvd rather than a blu disc) and actually add more incompatibility problems?

[smrpix]

Where were you three years ago?

https://forum.videohelp.com/threads/316063-Adding-extra-folders-or-files-to-BD-Disc

And if it doesn't work, it's not too expensive to test and fail.

[mazinz]

Where were you three years ago?

https://forum.videohelp.com/threads/316063-Adding-extra-folders-or-files-to-BD-Disc

And if it doesn't work, it's not too expensive to test and fail.

hahah I was not concerned at all with bluray burning three years ago. Funny that my google searches for the forum did not bring it up, then again seeing it by the title might be why since I searched for "adding a folder to bluray" instead of BD disc

In my case and if I was seeing it right, the disc I burned was not in AVCHD format. At any rate one player I had it worked fine but the other, though it did recognize it, would not play it. Both players are sort of bottom barrel and mostly region free machines which is why I have them. Still was not sure if the adding of the extra folder is what threw one of them off (now assuming probably not)

Thanks for the link and info

[jman98]

It should be OK, but I don't think anybody can assure 100% on this. The reason is that the BluRay specs cost money to view and you have to sign NDAs to see them, which means that a person who knows for sure if it is legal to have extra folders probably can't legally talk about it. But given how DVDs allowed this, I would be surprised if BD is more restrictive. Your player problem with the disc could be a variety of things that have nothing to do with an extra folder. For example, some older players have big problems with BD-R LTH discs. BD-RW and BD-R DL are both a little bit iffy in my experience with Verbatim having a far greater chance of success than any other brand.

[mazinz]

It should be OK, but I don't think anybody can assure 100% on this. The reason is that the BluRay specs cost money to view and you have to sign NDAs to see them, which means that a person who knows for sure if it is legal to have extra folders probably can't legally talk about it. But given how DVDs allowed this, I would be surprised if BD is more restrictive. Your player problem with the disc could be a variety of things that have nothing to do with an extra folder. For example, some older players have big problems with BD-R LTH discs. BD-RW and BD-R DL are both a little bit iffy in my experience with Verbatim having a far greater chance of success than any other brand.

both players I have are sort of laxed when it comes to rules of playing discs. Someone lent me a bdr and both decks played it fine. I have a cheapish seki that will play much of everything (inc regions and pal) and a slightly more standard but not really Sherwood that was able to be made region free. So given what I am working with I was a bit surprised the sherwood would not play that type of disc, but since the other deck does no matter.

you would figure just as long as it has the proper folders for the blu structure it might ignore everything else. I will chalk this up to a player issue rather than a structure issue

[Cornucopia]

For both the DVD-VIDEO and BLU-RAY (and AVCHD) specs, items WITHIN the authored folders must remain inviolate/unaltered, while items external to the authored elements (such as items off the root, in ROM or EXTRAS folders) are perfectly fine to be user-created/modified - PROVIDED the authored elements are kept first in the physical burn order/layout.

Scott

[mazinz]

- PROVIDED the authored elements are kept first in the physical burn order/layout.

Scott

and I will assume imgburn properly takes care of that, then again I always add the proper files first and roms/extras last when I drag them to imgburn

[Cornucopia]

Yes and yes

[mazinz]

Yes and yes

GOOD! Dvd was one thing since it did not matter what order they are listed in imgburn, but blu I had no idea. Either way the question is settled, thanks again