[media-types] Re: [IANA #1449400] application/ vnd.supercard-pro-disk-image registration request

Hi Amanda,

I am hoping than Darrel and Murray will weigh in. But see my comments below:

On 13/04/2026 19:39, Amanda Baber via RT wrote:
> 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?"

Original hardware/software manufacturer doesn't need to initiate the 
registration, but I think they need to be contacted.

Thomas should contact SuperCard Pro people, who are either say that it 
is Ok for him to be listed as the Change Controller or they should be 
listed as the Change Controller, but they are otherwise happy with 
Thomas' registration template. There is also a separate question of 
whether or not Thomas should be the Contact person for the registration.

If Thomas contacts SuperCard Pro and gets no response, then I think this 
can be registered as a third party registration.

If SuperCard Pro people say that they are not happy with the 
registration, we can have a separate discussion.


Basically, I am trying to avoid the situation that SuperCard Pro people 
discover later on that there is a registration related to their product 
and that there was no attempt to make them aware of it. Does this make 
sense?

> How should this proceed?
>
> Would the recommendation be the same for all three requests?

Yes, I think the same issue applies to all three.

Best Regards,

Alexey

>
> 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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