Hacking Need some documentations about Gateway (menu and .3ds)

[MrMandraque]

Hello everybody,

I search some informations about .3ds/.3dz files:

• what's a .3ds file?
• It's an archive?
• It's a raw .img?
• It's a mixup?
• how is built?
• What makes a .3ds file is a .3ds file and not a pancake?! (yes it's ridiculous, but the term makes me laugh!)
• What the difference between .3ds and .3dz files (yes, the headers and what else?)
• How Gateway load .3ds? (how to mount the .3ds file?)

What do we know about MultiROM menu?

• How it work?
• Is It hardware hack?
• Is It a payload?
• Is a native system functionality?
• Is it possible to replicate this feature using a plugin like PSP's VSH plugins? (only the menu without functionality)

I continued my research, if you have any links, thank you in advance.