Summary: This has been working as intended for years now, if these had become more widely used (and a little less expensive,) it would have received a 5-Egger. Bought this for a Sony VAIO all-in-one PC as a backup device for critical user files. The unit still works, but as a PC it's pretty much obsolete.
Pros: Small (for its time.) Reads/writes quickly enough. Durable, still works 7 years later.
Cons: Expensive compared to other storage formats. Proprietary format is only used in Sony and Sony-licensed products, CF and SD are much more widely used.
Summary: I was told that this card would in my Mavica FD92 MVC camer but it didn't work. I tried an adapter and it didn't work. I called Sony and they couldn't help. I'm stuck with a chip that only fits on certain things and I can exchange it. I even bought another recommended adapter and it failed to work.