looked but couldnt find this deal so here it is
SanDisk Memory Stick PRO DUO is half the size of a Memory Stick PRO and offers high speed data transfer. This PRO DUO Memory Stick can be used as Memory Stick PRO with an adaptor.
Warranty : 5 Years
for use with psp and many more devices
£17.99+£3.95 postage still makes this cheapest by far
GO THROUGH QUIDCO FOR EXTRA SAVINGS