USB Games. Open PS2 Loader supports USB mass storage devices type up to 2TB with only one partition formatted with FAT (FAT32 or FAT16). Your games must be either in the USBExtreme format or in the ISO format (ISO9660 disc image).
C++ became widespread in console development during the PS2/Xbox/Gamecube era; C and similar-level languages were primarily used during the PS1/Saturn/N64 era, and to a lesser extent the 16-bit era (for example, several EA sports titles on the Genesis were programmed in Pascal).