[media-types] Re: [IANA #1456464] audio/vnd.opennbs .nbs registration request

Approved with those changes.

-MSK

On Thu, Aug 6, 2026 at 11:04 PM David Dong via RT <
[email protected]> wrote:

> Hi Murray,
>
> The requester has agreed with your corrections and requested to change
> this to vendor tree instead.
>
> Below is their response and the updated template.
>
> Thank you.
>
> Best regards,
>
> David Dong
> IANA Services Sr. Specialist
>
> --
>
> Thanks, that makes sense. I was showing that the NBS format is widely
> used, but I don’t have evidence that audio/nbs itself is already in use as
> a media type.
>
> Please change the request to:
>
> audio/vnd.opennbs.nbs
>
> Also, please update these fields:
>
> Deprecated alias names: N/A
> Magic number(s): N/A
> Person to contact: OpenNBS Project
>
> Everything else can stay the same.
>
> Thanks again for your help.
>
> ===
>
> Registration form:
>
> Name: Xi Chen
>
> Email: [email protected]
>
> Media type name: audio
>
> Media subtype name: vnd.opennbs.nbs
>
> Required parameters: N/A
>
> Optional parameters: N/A
>
> Encoding considerations: binary
>
> Security considerations: This media type represents a binary song project
> file. Implementations should validate all lengths, counts, and offsets
> before use. Malformed files may result in excessive memory allocation or
> resource consumption if not properly validated. The format contains no
> executable code and is not intended to carry active content.
>
> Interoperability considerations: Files are versioned. Readers should
> reject unsupported versions or ignore unknown fields according to the file
> format specification where possible.
>
> Published specification: https://noteblock.studio/nbs
>
> Applications which use this media:
>
> Note Block Studio
> NBS Player
> NoteBlockLib
> nbs.js
> pynbs
> Note Block Tool
>
> Fragment identifier considerations: N/A
>
> Restrictions on usage: None.
>
> Provisional registration? (standards tree only): No
>
> Additional information:
>
> 1. Deprecated alias names for this type: N/A
> 2. Magic number(s): N/A
> 3. File extension(s): .nbs
> 4. Macintosh file type code: N/A
> 5. Object Identifiers: N/A
>
> General Comments:
>
> Person to contact for further information:
>
> 1. Name: OpenNBS Project
> 2. Email: [email protected]
>
> Intended usage: COMMON
>
> Author/Change controller: OpenNBS Project
>
> ===
>
> On Tue Aug 04 21:23:24 2026, [email protected] wrote:
> > On Wed, Jul 22, 2026 at 1:32 PM Amanda Baber via RT <
> > [email protected]> wrote:
> >
> > > Would you be able to review this request for grandfathered type
> > > registration (per RFC 6838, Appendix A) by August 5th? If you
> > > recommend it,
> > > we'll ask the IESG to approve the type.
> > >
> >
> > A couple of housekeeping notes inline, but they're minor.
> >
> > One major question though: It's clear this format is established, but
> > where
> > is the media type in use such that it would be appropriate under
> > Appendix
> > A?  I couldn't find any.
> >
> > -MSK
> >
> >
> > > thanks,
> > > Amanda
> > >
> > > =====
> > >
> > > Message from the applicant:
> > >
> > > The NBS (Note Block Studio) file format has been publicly documented
> > > and
> > > in continuous use since the original release of Minecraft Note Block
> > > Studio
> > > in 2011. It has continued to evolve over the years while maintaining
> > > compatibility through versioned revisions, and the format
> > > specification is
> > > publicly available:
> > >
> > > https://noteblock.studio/nbs
> >
> >
> > This talks about the format, but not the transport.
> >
> > Is this media type actually in use anywhere?
> >
> >
> > > Since its introduction, the format has been adopted by a number of
> > > independent applications and libraries in addition to the original
> > > editor.
> > > These include Open Note Block Studio, NBS Player, NoteBlockLib,
> > > pynbs,
> > > nbs.js, Note Block Tool, and other independent implementations that
> > > read or
> > > write .nbs files.
> > >
> > > The format is also used beyond standalone applications. It is
> > > supported by
> > > Minecraft server software and server plugins that play note block
> > > music in
> > > multiplayer environments, allowing .nbs files to be used directly as
> > > playback assets rather than only as editor project files. As a
> > > result, the
> > > format has become the primary interchange format for Minecraft note
> > > block
> > > songs between editors, libraries, players, server software, and
> > > conversion
> > > tools.
> > >
> > > Some examples include:
> > >
> > > https://github.com/koca2000/NoteBlockAPI
> > >
> > > https://modrinth.com/plugin/noteblockapi
> >
> >
> > These APIs look like they can generate and consume the payload, but
> > don't
> > get into transport.
> >
> >
> > > https://github.com/emortaldev/NoteBlockLib
> >
> >
> > This link 404s.
> >
> >
> > > The format has remained in active use for nearly fifteen years and
> > > continues to be maintained and implemented by multiple independent
> > > projects.
> > >
> > > With that in mind, I would appreciate having the registration
> > > reviewed by
> > > the IESG-designated media type experts for possible grandfathering.
> > >
> > > If they determine that a standards-tree registration is not
> > > appropriate, I
> > > would be happy to revise the application as a vendor-tree
> > > registration
> > > instead.
> > >
> > > ===
> > >
> > > Registration form:
> > >
> > > Name: Xi Chen
> > >
> > > Email: [email protected]
> > >
> > > Media type name: audio
> > >
> > > Media subtype name: nbs
> > >
> > > Required parameters: N/A
> > >
> > > Optional parameters: N/A
> > >
> > > Encoding considerations: binary
> > >
> > > Security considerations: This media type represents a binary song
> > > project
> > > file. Implementations should validate all lengths, counts, and
> > > offsets
> > > before use. Malformed files may result in excessive memory allocation
> > > or
> > > resource consumption if not properly validated. The format contains
> > > no
> > > executable code and is not intended to carry active content.
> > >
> > > Interoperability considerations: Files are versioned. Readers should
> > > reject unsupported versions or ignore unknown fields according to the
> > > file
> > > format specification where possible.
> > >
> > > Published specification: https://noteblock.studio/nbs
> > >
> > > Applications which use this media:
> > >
> > > Note Block Studio
> > > NBS Player
> > > NoteBlockLib
> > > nbs.js
> > > pynbs
> > > Note Block Tool
> > >
> > > Fragment identifier considerations: N/A
> > >
> > > Restrictions on usage: None.
> > >
> > > Provisional registration? (standards tree only): No
> > >
> > > Additional information:
> > >
> > > 1. Deprecated alias names for this type: None.
> > >
> >
> > This should be "N/A".
> >
> >
> > > 2. Magic number(s): None.
> > >
> >
> > This should probably be "N/A" as well.
> >
> >
> > > 3. File extension(s): .nbs
> > > 4. Macintosh file type code: N/A
> > > 5. Object Identifiers: N/A
> > >
> > > General Comments:
> > >
> > > Person to contact for further information:
> > >
> > > 1. Name: OpenNBS
> > >
> >
> > I think, just to be nitpicky, that this should be "OpenNBS Project",
> > matching the change controller.
> >
> >
> > > 2. Email: [email protected]
> > >
> > > Intended usage: COMMON
> > >
> > > Author/Change controller: OpenNBS Project
> > >
> > >
>
>

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