ROM Hack DS Download Station Editor?

[Wuschmaster]

Is there an editor for the American DS Download Station roms?
I have some official demos and want to compile my own selection.

If possible, I also want to edit the advertisement while it's downloading a demo.

Please, anyone! thanx

 

[Ferrariman]

you want to put more demos?

 

[Wuschmaster]

Different ones - and maybe even more than usual, yeah!

 

[arctic_flame]

The ROMs are compressed, IIRC it was yet another LZ77 implementation. You'd have to extract and decompress the boot stub to edit the warning, good luck with that.

 

[Wuschmaster]

I found a decompressor. But how can I compress them?

 

[arctic_flame]

Look at the decompression documentation and write one.

 

[Wuschmaster]

I was actually asking if there's an editor...
I am not a programmer.

 

[Urza]

I was actually asking if there's an editor...

No, there isn't.

 

[DarthNemesis]

Someone out there must have released the source to their LZ77 compression routine, though. I've written a packer that doesn't actually do any compression, and I'd like to have one that makes the whole process worthwhile, but it sounds prohibitively complicated.

 

[DanTheManMS]

The "yellowstar" user at GBAdev has been doing a lot of work recently on Download Play images and other ad-hoc stuff. I haven't been following it too closely, but it's worth a look.

 

[Wuschmaster]

I see.
Hmm yelowstar seems to be working on japanese downloads though... the american download stations are much different

It's really a shame there is no compressor/editor available.
It would be a damn cool homebrew app!!

 

[arctic_flame]

It's pointless, as you will only be able to send signed demos anyway, unless the receiving DS has been flashme'd.

 

[Wuschmaster]

It's pointless, as you will only be able to send signed demos anyway, unless the receiving DS has been flashme'd.

Huh? Why pointless?
I ONLY want to send signed demos. I'm not interested in sending homebrew.