PSX Disk change problem?

When I try to go to disk 2 of Final Fantasy 7 after the screen tells me to “insert disk 2”, it only takes me to a black screen. How do I change disks?

(When it tells me to switch, I go to Settings>Disk settings, eject it, and insert the .bin file for disk 2, but it won’t work!)

Can you upload .srm file of memory card? I have some idea.