PS2 - FunTuna (Free McBoot for Fortuna), Page 8

Well you are wrong. Tested that (as has multiple others). I believe there is even multiple comments about it in this thread.

How to operate Funtuna Fortuna on a Playstation 2 PS2 Slim

PS2 - FunTuna (Free McBoot for Fortuna), Page 6

PS2 - FunTuna - Free McBoot for Fortuna

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Free Memory Card Boot - FMCB 1.95 - HardLevel

Buy Bitfunx FMCB Card V1.966 and Fortuna for PS2 MX4SIO SIO2SD SD Card Adapter Installed OPL at Aliexpress for . Find more , and products. Enjoy ✓Free

Bitfunx FMCB Card V1.966 and Fortuna for PS2 MX4SIO SIO2SD SD Card Adapter Installed OPL

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PS2 - FunTuna (Free McBoot for Fortuna)

New PS2 Free McBoot Card FMCB v1.966 8M 16M 32M 64MB Memory Card Supports All Consoles Fat and Slim Update OPL1.2.0 For MX4SIO - AliExpress

PS2 - FORTUNA Homebrew Launcher by VTSTech (BOOT.ELF replacement), Page 4