[media-types] [IANA #1449400] application/vnd.supercar d-pro-disk-image registration request

Hi Alexey, Darrel, Murray,

Addressing this to all of you, as Alexey mentioned that he'd like to hear from others as to whether it's OK to list Thomas Huth as the change controller for these:

We heard back from Thomas in reference to this supercard request. He wrote, "I need the mime-type for the emulator Hatari where I am involved in (https://www.hatari-emu.org/) - that emulator recently gained the feature
to load SuperCard Pro disk images, too. Sorry if I messed up the registration ... do I have to contact the original
Supercard hardware manufacturer instead, and ask them to register the mime-type?"

How should this proceed?

Would the recommendation be the same for all three requests?

thanks,
Amanda

On Wed Apr 08 10:30:46 2026, [email protected] wrote:
> Hi Amanda,
> 
> I don't fully understand the relationship between Thomas Huth and
> SuperCard Pro. In particular I see that Thomas is listed as the change
> controller and this is not a third party registration.
> 
> Other than that, this would be fine to register.
> 
> Best Regards,
> 
> Alexey
> 
> On 07/04/2026 00:09, Amanda Baber via RT wrote:
> > Hi Alexey,
> >
> > This is the first of three requests from this applicant. Can you
> > review these by April 20th?
> >
> > thanks,
> > Amanda
> >
> > =====
> >
> > Name: Thomas Huth
> >
> > Email:[email protected]
> >
> > Media type name: application
> >
> > Media subtype name: vnd.supercard-pro-disk-image
> >
> > Required parameters: N/A
> >
> > Optional parameters: N/A
> >
> > Encoding considerations: binary
> >
> > Security considerations: SuperCard Pro (SCP) disk images can store
> > the same data as a real floppy disk. That means they may contain
> > arbitrary content, including but not limited to active content. Thus
> > if the users do not trust the contents of the disk image, they should
> > carefully check the contents first before using it (e.g. with a
> > suitable anti-virus software to check for known malicious software).
> > The SCP format also does not provide privacy or full integrity
> > protection, so if these protections are desired they must be applied
> > externally.
> >
> > Interoperability considerations: There are multiple versions of the
> > file format. Applications that have been written by using an older
> > version of the specification might be (partly or fully) unable to use
> > SCP disk images that have been created by another application which
> > used a newer version of the specification.
> >
> > Published
> > specification:https://www.cbmstuff.com/downloads/scp/scp_image_specs.txt
> >
> > Applications which use this media: The SCP file format is used by
> > floppy disk preservation tools and various emulators of old computers
> > that used such floppy disks.
> >
> > Fragment identifier considerations: N/A
> >
> > Restrictions on usage: N/A
> >
> > Provisional registration? (standards tree only): No
> >
> > Additional information:
> >
> > 1. Deprecated alias names for this type: N/A
> > 2. Magic number(s): 0x53 0x43 0x50 at byte position 0 - 2 (i.e. the
> > ASCII letters "SCP")
> > 3. File extension(s): .scp
> > 4. Macintosh file type code: N/A
> > 5. Object Identifiers: N/A
> >
> > General Comments:
> >
> > Person to contact for further information:
> >
> > 1. Name: Thomas Huth
> > 2. Email:[email protected]
> >
> > Intended usage: COMMON
> >
> > SCP files are usually created by disk preservation tools like the
> > software that is used to drive the "SuperCard Pro" hardware. The SCP
> > files contain the low-level flux data of the disk and thus can be
> > used to fully preserve the contents of a floppy disk. These files
> > then can be used to create a copy of the original disk, or they can
> > be used in emulators for providing the floppy disk contents to the
> > emulated system.
> >
> > Author/Change controller: Thomas Huth
> >

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