SMPTE Bv2.1 errors. Critical?

Anything and everything to do with DCP-o-matic.
cvila
Posts: 5
Joined: Tue Jul 16, 2024 11:54 am

SMPTE Bv2.1 errors. Critical?

Post by cvila »

I have a SMPTE DCP authored outside of DCP-o-matic. Basically a rewrap from an original DCP, adding a dubbed cpl and subtitles.

Deluxe reported some issues, all relative to compliance with Bv2.1 standard
The DCP plays fine in DOM player and EasyDCP.

In particular, the issues are

- audio is 5.1.. Should be 16 channel WTF format.
- some reels don't have subtitles (logo reels) . All reels should have subtitles, empty subtitle file if necessary.

I have the means to correct this, but I want to ask. Has anyone ever experienced issues in cinema ingest or playback if these two issues are not resolved?
I have authored several smpte dcps in the past without Bv2.1 standard and all were fine (national distribution)
Thanks
Carsten
Posts: 2752
Joined: Tue Apr 15, 2014 9:11 pm
Location: Germany

Re: SMPTE Bv2.1 errors. Critical?

Post by Carsten »

The 16ch WTF is a workflow matter, not a SMPTE Bv2.1 error. You can safely use 6ch or any other even number of channels.

I see commercial main stream DCPs using 6 or 8 channels daily.

The 'all reels need subtitles (even if empty) when one reel has subtitles' is a known issue that MAY hit on some systems. As far as I remember discussions, it may cause problems on one server that has or had a significant market share.

I recently came across a mainstream DCP that threw the same error. It played flawlessly on our Sony and Barco servers.
Last edited by Carsten on Sat Jul 20, 2024 2:21 am, edited 1 time in total.
cvila
Posts: 5
Joined: Tue Jul 16, 2024 11:54 am

Re: SMPTE Bv2.1 errors. Critical?

Post by cvila »

Thanks Carsten for the insights, much appreciated.
I redid the DCP and all's fine now.
Last edited by cvila on Thu Jul 18, 2024 3:37 pm, edited 1 time in total.
carl
Site Admin
Posts: 2481
Joined: Thu Nov 14, 2013 2:53 pm

Re: SMPTE Bv2.1 errors. Critical?

Post by carl »

That was Carsten, not me :D
cvila
Posts: 5
Joined: Tue Jul 16, 2024 11:54 am

Re: SMPTE Bv2.1 errors. Critical?

Post by cvila »

haha you're FAST
carl
Site Admin
Posts: 2481
Joined: Thu Nov 14, 2013 2:53 pm

Re: SMPTE Bv2.1 errors. Critical?

Post by carl »

I have to approve the first few messages from new posters, so I get a first look :geek: