I noticed someone had a thread which was closed and wanted to help anyone that had error when trying to import mcr saves into EBOOT games via CWCHEAT
If you keep getting "open error 0x80010002" even after following all the instruction to import .mcr files try this method it worked for me:
I kept getting:
"open error 0x80010002"
"Unable to find mc. contact weltall!!"
But I was trying different things and it finally worked!
1ST I choose "Save Memory Card 1 to Memory Stick"
2ND I used "PSXMemTool" to open my emulator save and the new mcr that CWCHEAT created
3RD I copied the save from the emulator mcr to the mcr that CWCHEAT created
4TH After the CWCHEAT mcr has the save data I want; I saved the mcr using "PSXMemTool"
5TH Transfer the edited mcr that was created by CWCHEAT
6TH Load from CWCHEAT using the "Load Memory Card 1 from Memory Stick" option
you should see OK! on your last operation
This worked for me when the standard transfer of mcr from PC to CWCHEAT didn't work
Hope this helps! ;-)