Gran Turismo 4- Online Public Beta -normal Down... Access

My disc is failing to boot on a standard Japanese PS2 (SCPH-50000). It gets past the "PlayStation 2" logo, then hangs on a black screen. No DNAS error, no red screen—just a hard freeze. I’ve tried both OPL (over SMB) and burning a fresh copy onto Verbatim media. Same result.

For those who don’t know: Polyphony actually released a separate disc version of GT4 that enabled online play (Battle Mode, Time Attack leaderboards, and even voice chat via the PS2 headset). The servers were shut down within a year, but the beta disc itself has always been a weird piece of history. Gran Turismo 4- Online Public Beta -Normal Down...

I managed to track down what is supposedly a (ノーマルダウン) copy of the beta—meaning it’s the standard retail/public beta version, not the developer debug build or the "Trial" disc that came with some magazines. My disc is failing to boot on a

I’ve been deep-diving into the lost media side of the Gran Turismo series lately, specifically the that was released exclusively in Japan back in 2006. I’ve tried both OPL (over SMB) and burning

P.S. If you have the "Normal Down" case art, please post it. All I have is the disc itself. Attached photo of the disc (silver with black "GT4 ONLINE PUBLIC BETA" text).

Hey everyone,