The Memory Suppliers web site provides micro sd flash mobile memory cards at low prices and with many different sizes. You can select a 4 gig, a 2 gig, or an 8 gig Micro SD SanDisk flash card all for under forty dollars. Larger ones are available as well although the price does then go up in proportion to the features or the size of the memory card. There is a sixty day money back guarantee on all products.