WWE SmackDown: Here Comes the Pain

A very specific and technical topic!

Here's the full story:

For those who may not know, PCSX2 is a popular emulator for playing PlayStation 2 (PS2) games on PC. The file you're referring to, mcd001.ps2 , is a memory card file used by PCSX2 to store save data for PS2 games.

PCSX2

Released in 2003, WWE SmackDown: Here Comes the Pain is a professional wrestling video game developed by Yuke's and published by THQ. It was released for the PlayStation 2 (PS2) console.

mcd001.ps2