Do not use a random ISO. You need a verified Redump.org image of a rare game—ideally a Japanese "Best Collection" or a European "Platinum" release, as these often have post-launch bug fixes.

High-resolution icons that look modern on the XMB (Cross Media Bar).

High-value exclusives have a unique "Game ID" in the PARAM.SFO . Instead of the standard SLUS or SLES code, they use custom codes like XEB-XXXX (Xclusive EBOOT). If the Game ID starts with NPUG (official PSN), it is not exclusive.

A short background music loop that plays while selecting the game on the menu.