Restore from a previous backup. If you have no backup, you may need to delete the file and start fresh. Issue 3: "Memory Card Full" Message Cause: The 15 blocks are filled.
What are you currently trying to save or recover?
Navigate to the Memory Card management screen to delete or move individual game saves within the epsxe000.mcr file. epsxe000.mcr
epsxe000.mcr is the default used by the ePSXe emulator to simulate the physical memory card of a PlayStation 1 console [2].
Like physical memory cards, .mcr files can occasionally "corrupt" if the emulator crashes during a save operation. It is best practice to keep periodic backups of the epsxe000.mcr file manually. Restore from a previous backup