PlayStation Development Network

Hi everyone, I'm trying to replace my jap ps1 bios with a PS1 DTL-H1100 or similar just for fun.
I had a look all over the web but I cannot find an IC that would work for purpose.

I'm a kind of a newbie with ps1 bios and stuff like that but I'm totally fine if I need to solder/modify anything.

Any help would be appreciated!

Great if you are exploring replacing the BIOS on your PS1. Try to check out modding forums or retro gaming communities. They might have detailed instructions or sources for the ICs you need. Good luck!