I am almost positive 64 GB is possible. And Im going to quote a product page ..... "Maximum capacity: Depends on the capacity of used SD/SDHC". This is from DX.
Post Merge: December 09, 2009, 02:35:26 AM
The whole point Im trying to make is "memory control chips". The photofast units use them and so does the SD multiplexer. So with my CFW and daisy chaining 4 into 2 into 1. Each tier multiplies your capacity for memory expansion. So in theory physical size is the only limit i see, as far as an internal mod. But externally, lets say mounted in a hard case. hmmmmm.