Summary: At first, I was wary about getting a large memory stick for my PSP, because I wasn't sure how it would function. Online forums spoke of long transfer speeds, product ceasing to work after a couple of months, and even the PSP itself not being able to handle a memory stick of such large size. Well, I am happy to report that none of those concerns turned out to be reality.
Summary: I ordered two of these from BoBotechnic. I received two different packages, but they are they same product inside. Both are the MSHX16B type Memory Stick Pro-HG Duo HX. No need to worry, this product is exactly as advertised in the listing. I have not tried out the cards yet, but expect them to work just fine!
Summary: The Sony HG Memory Stick, its so much better than the Pro Duo. I don't know if it's my imagination, but my Cyber-Shot camera is faster. I don't have that annoying delay anymore. Somehow this HG memory stick compensates. Also, I needed the 32GB of space, to record short videos of our son while my husband is away. This exceeded my expectations especially since the lag time between shots have significantly diminished.
Summary: From a cost standpoint, I thought about the 8GB or even 2 8GB. However, it made more sense to me to just get the 16GB and not have to worry about carrying an extra memory stick. I've come close to using up a memory stick on a previously owned T100 on a long vacation. Now that won't be a concern and I don't have to worry about keeping or carrying an extra!