Are these folders required for Bluray Playback?

[VideoFanatic]

There seems to be some useless folders created when I author a Bluray disc with MultiAVCHD:

details.txt
multiAVCHD.mpf
HDAVCTN folder which contains thumbnail pictures

In the BDMV folder:

The AUXDATA folder contains a file called "multiAVCHD.mpf"

When I delete all the above stuff my disc still plays in my PS3 but I'm just wondering if I need the above stuff for it to play in other Bluray players?

[johns0]

Nope,they are just leftover stuff.I wouldn't delete the auxdata folder though.

[VideoFanatic]

Thanks. So I should keep the AUXDATA folder but can I delete the multiAVCHD.mpf file inside the folder?

[Noahtuck]

Nope,they are just leftover stuff.I wouldn't delete the auxdata folder though.

Why is that ?

I am going to try multiAVCHD for the first time tonight so i don't have any experience with it.
But of the Blurays i have backed up i never saw an "auxdata" folder so i would tend to think that is something from multiAVCHD and is not needed for bluray playback.

When I delete all the above stuff my disc still plays in my PS3 but I'm just wondering if I need the above stuff for it to play in other Bluray players?

Over the last few days i have backed up my first 10 Blurays to 25gb BD-R with only the BDMV folder and it only contained these folders,

BACKUP
CLIPINF
PLAYLIST
STREAM
(files)
index.bdmv
MovieObject.bdmv

And i did not need the "CERTIFICATE" folder either for playack on my 2 standalone Bluray player's.
And it does not seem to be a deciding factor in PC Software playback either, as i have had some playback without the "CERTIFICATE" folder & some NOT playback with it, and vice versa....

But I am new to the whole bluray ripping, backing up, converting process so i am sure there are many things i am missing and/or still need to learn.

[edDV]

This all depends on the player. These files take next to no space.

For AVCHD folders, they can contain valuable metadata.

[fritzi93]

Yes, depends on the player. I'd keep the AUXDATA folder and lose the rest.

There was a thread a couple years ago about BDRB compatibility on BD standalones at Doom9. Seems most players expected to see the AUXDATA folder. Except for Samsungs with specific firmware.

http://forum.doom9.org/showthread.php?t=146339&highlight=standalone+results

I don't have a good answer as to what purpose it serves, but that chart is suggestive.

Good luck.