Rethinking the 3DS (DLC) DAT

[Connie]

I agree, but isn't CIA (or 3ds) currently just an 'archive' of this folder structure anyway?

[gamecaptor]

Yes, but in the same way an ISO is a folder structure for whatever they contain; It's basically the packaging around everything.

[Hiccup]

I'm pretty sure CIA contains more data than 3DS.

[gamecaptor]

I'm pretty sure CIA contains more data than 3DS.

I would think so as well. Anyone ever opened a 3DS title that is also on eShop and compared?

And really even if it does or doesn't is sort of beside the point. It's just about capturing the best case of the files for the DAT.

[Hiccup]

https://www.3dbrew.org/wiki/NCSD

https://www.3dbrew.org/wiki/CIA

^ those might help

[jimmsu]

I'm pretty sure CIA contains more data than 3DS.

3DS contain more data , it has also a update in it and CIA has not.

[Hiccup]

What do you mean update? Digital titles don't contain updates.

[gamecaptor]

What do you mean update? Digital titles don't contain updates.

Interesting question. Don't they update the eShop releases to have the patches in them?

Say you purchased Smash Bros when it first came out (v1) and then you re-bought it today, wouldn't it come pre-patched to the last version (v1.5 or whatever it is)?

[Hiccup]

I thought jimmsu meant system updates - which only exist in physical titles.

As for of a new version of a title contains the changes that patches made - that is different per-game. But I haven't heard of any digital title doing this, though I suspect at least some the many new versions (aka revisions) of *physical* Smash Bros. contain the changes that downloadable update/s made.

[KingMike]

I remember when I downloaded Pokemon Y a couple months after release, it still made me update immediately after (if I recall, 1.2 was the last version of the game on its own, before ORAS compatibility updates).

[Hiccup]

That has nothing to do with the contents of the ROM. Later versions of the system menu force you (or ask you) to update the title or install a patch ("Update Data") for it.

[Hiccup]

Question about potential Nintendo CDN dats:
where should the cetk be stored in the datfile?
cetks (common tickets) aren't exclusive to particular title versions, so where should they be stored?

ideas:
-as a separate entry? e.g. Game Name (USA) (cetk)
-duplicate to each entry? (but wouldn't that waste space? although cetks are tiny)
-put them in the lowest version entry? e.g. cetk would go in Game Name (USA) and not Game Name (USA) (Rev 1)
-seperate dat? maybe this theoretical dat could also contain normal tickets dumped from people's consoles?

[norkmetnoil577]

I am not sure I fully understand how the tickets work (why I haven't tried to do these yet) but if the issue is that cetk is the only redumpable key needed for full decryption then I would say it should be duplicated in every set it works on because otherwise you would need a separate list of which keys go with which sets and it would be harder to know which just don't have keys dumped yet versus having been verified to be duplicate of some other one. They should be very small size. For the sony packages with the same decryption keys (not many examples but some), the raps work the same way in that they are present in each set.

Another question is whether it is worth datting sets where keys are undumped, if that would discourage proper dumping...

[jimmsu]

Question about potential Nintendo CDN dats:
where should the cetk be stored in the datfile?
cetks (common tickets) aren't exclusive to particular title versions, so where should they be stored?

ideas:
-as a separate entry? e.g. Game Name (USA) (cetk)
-duplicate to each entry? (but wouldn't that waste space? although cetks are tiny)
-put them in the lowest version entry? e.g. cetk would go in Game Name (USA) and not Game Name (USA) (Rev 1)
-seperate dat? maybe this theoretical dat could also contain normal tickets dumped from people's consoles?

You have 2 files
tmd and the 00000000 file
And then you need the keys for encrypting en decrypting
And all should be in 1 archive

[Hiccup]

yeah but should cetk be in every revision or just the original one?