Sony started its week today by introducing its largest ever Memory Stick Pro-HG Duo HX card. The 32GB card stores twice as much as Sony's previous best and is treated as a particularly ideal fit for the company's own Alpha DSLRs and its HD camcorders: the latter could hold about 3.75 hours of HD footage on a single card. As an HX card, it's also relatively quick with 15MB per second write speeds