47884 Posts in 5490 Topics - by 11362 Members - Latest Member: larva_pro

Author Topic: Dreamcast file formats  (Read 5149 times)

mikayy

  • 8-Bit
  • Posts: 1
Dreamcast file formats
« on: July 26, 2025, 09:42:08 PM »
Hello all,

Currently I am embarking on a free fan project to remake Seaman in Unity. The twist is I will be integrating AI to allow for more dynamic conversations so that the user can have better and longer conversation experiences with equal witty and existential dialogue.

Right now I am hitting a major bump in the road that has to deal with .njm, .njs, and .njd files. I took a Seaman.cdi and ran it through ISOBuster to extract the files from it and was able to find audio files, graphics, models etc. Some of the graphic files were these file formats I mentioned previously, I believe I know what they are and what they’re used for but I don’t know how to integrate them into my project. Noesis can view a majority of the files in the graphics folder except these 3 file formats. I found a plugin from a Phatansy Star Online forum that deals with these formats but I’m having difficulty getting that to work I may have to modify the plugin to allow for the Seaman .njm/.njs file formats.

If anyone has any information or can guide me to resources to either extract useful data from those files or info that can allow me to create my own extraction method please share.

Thanks for any assistance.

spshortman

  • Bruh
  • 64-bit
  • ***
  • Posts: 396
Re: Dreamcast file formats
« Reply #1 on: July 31, 2025, 08:04:36 PM »
Hello all,

Currently I am embarking on a free fan project to remake Seaman in Unity. The twist is I will be integrating AI to allow for more dynamic conversations so that the user can have better and longer conversation experiences with equal witty and existential dialogue.

Right now I am hitting a major bump in the road that has to deal with .njm, .njs, and .njd files. I took a Seaman.cdi and ran it through ISOBuster to extract the files from it and was able to find audio files, graphics, models etc. Some of the graphic files were these file formats I mentioned previously, I believe I know what they are and what they’re used for but I don’t know how to integrate them into my project. Noesis can view a majority of the files in the graphics folder except these 3 file formats. I found a plugin from a Phatansy Star Online forum that deals with these formats but I’m having difficulty getting that to work I may have to modify the plugin to allow for the Seaman .njm/.njs file formats.

If anyone has any information or can guide me to resources to either extract useful data from those files or info that can allow me to create my own extraction method please share.

Thanks for any assistance.

hello friend, this forum is basically dead. im the only one still here and unfortunately i cant answer your question. there are more active forums like dreamcast talk https://www.dreamcast-talk.com/forum/ which can probably help you! good luck!