I have an old circuit board that uses 8 27c4001 EPROMs to store some sound data. There are two different versions of the software that can be used by switching all 8 EPROMs.
Can anyone help me with a way to build a pcb that plugs into the old socket or sockets but uses a new modern day device to store the EPROMs data and allow me a way to switch between the two versions of the EPROMs?

My first attempt was to use 8 27c080 EPROMs and put both .bin files onto each of them and ground the pin that determines which half of the EPROMs is read. But that still uses 8 EPROMs to accomplish and 27c080s arenít that cheap.

Ideally Iíd like to be able to plug into only the first socket and use only one device to accomplish this, any thoughts?