Naomi Rom weird files

[Mudkip97]

So I'm not trying to emulate a Naomi Arcade game, however I am trying to extract models from a game called World Kicks. Unfortunately for some reason every guide online has me use a .chd or .gdi file however the rom I have has: 
-A couple of .bin files 
-.ic31 file 
-a .bios file 
-A bunch of .ic27 files 
-.ipl file 
-A few files with the .4(varied letter) files 

Dunno what to do with these or how to get to what I want to achieve. 

[JoeViking245]

I don't know anything about extracting "models" from a ROM. But if you were open/expand the compressed chd or gdi file, my guess is you'll find the 43 some-odd files you're seeing in your zip.

But the game is a Namco (Sega Naomi) cart. Not a disc.  So not sure why "they" would mention chd or gdi.

[Mudkip97]

Okay so how do I compress? 

[JoeViking245]

TBH, I think you need to post the question on one of the guides you found.

What [I think] you're asking to do is 

• unzip/extract/uncompress the contents of wldkicks.zip
• [re]compress the extracted files into a chd (short for Compressed Hunks of Data) file
  • which you might be able to use chdman that comes with the MAME binaries
• then extract the "models" that are in the chd that you just created (which is possibly redundant to the 1st step)
  • which might be [some of] the files you extracted earlier

But that's all just a guess.