the super system 265 appears to only run games via hard drive as the firmware does not have (or allow) the use of a dvd drive. it does not have the atapi commands so ive read / experienced.
some 246 games (fate) will load but run in an overclocked state which results in very very glitchy sound, brightness, speed, text etc.
there are 3 holes where the namco 246+ / 256 mode jumper is supposed to be (its still marked on the board) but i do not believe this is the only point that disables the compatibility switch as i tried bridging it with tweezers which just resulted in no longer posting / booting up. i was under the impression that it is 256 mode which is disabled and 246+ mode was enabled.
i love the small case. i am not convinced this guy is useless. there must be some way to enable the atapi and switch modes. it is all too typical of sony to disable features via firmware.
it will try to run all these games but time crisis 4 seems to be the only one that matches its configuration standards.