[QUOTE=sandia911;2017750]Memory stick pro duo for Sony only?
Is the Sony brand Memory Stick Pro Duo (4GB) memory card useful in Sony cameras ONLY, or can I insert it in other cameras as well?
[QUOTE=xtacydima;2034017]You can use other brands.
Sandisc has worked well for me with no compatibility problems for example.[/QUOTE]
Actually, the original question is about the Memory Stick Pro Duo’s compatibility with other brands of cameras besides Sony. In this case, then the answer is a qualified NO. There is currently no other brand of camera which is capable of accepting Memory Stick Pro Duo cards directly, and many of those will not even recognize such a card even with an adapter which fits their slot(s). Most other brands of compact digital cameras use SD cards.