Recovery Menu > Configuration > Speed Up MS Access
On a related note...
I had it set to ALWAYS and after a while of playing Star Ocean Second Evolution I dropped back to the XMB and I noticed that the MS size was reported as 0 MB and I could not access the Memory Stick! I fixed it by disabling the Speed Up Option and rebooting.
So just be cautious have your stuff backed up and don't freak out when shit disappears
EDIT: Oh yeah make sure you get the updated recovery.prx from DAX's forum* if you have not already.
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