Cogswap will show that PS2 Game is in drive.Press X on gamepad -the colour will change from yellow to blue and it will say 'Use CogSwap'.So now depending on PS2 you got-slim or fat SWAP the ps2 game disc with backup. From FMCB launch Cogswap.elf -(CogSwapLoader V1.0 by Hermes)- and insert in ps2- 'Original Licensed PS2 Game' with High TOC (High TOC-means the Biggest size of game you can find). If you really want to play with 'Swapping' -but do not want to buy Expensive as I understand from my own experience Swap Magic discs (Price of Discs+ Shipping-Expensive)-You can use instead -FMCB. Without that (or possibly an original game disc with a large TOC), the mechacon simply will not allow code to read from CDVD.Instead of using ESR, you could try OPL, which can load games from USB drives (slowest, USB 1.1 speed only), SMB/CIFS Windows-compatible fileshare (medium speed), or internal HDD.

You can boot SM from an.ELF, but you won't gain the benefits of being able to swap, as that function relies on the physical SM disc (CD or DVD type) in order to fool the mechacon into reading most single-layer games.

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