I was browsing the QJ.net forums and it looks like someone finally tried 2 x 32GB SDHC cards + Photofast CR-3100



Source:
http://forums.qj.net/psp-themes-mods...ml#post2200380

I feel bad for mike, but I'm glad someone actually tried it.
It really looks like the hardware limit on the Photofast product is 32 GB, even though DA brought the PSP's limit up to 2TB's.