I have recently purchased th 256 mb stick to up-grade my Sony P73 camera from the bog standard 16 mb supplied which i found by the way to be a waste of time approx 5 mins of video,on the up-grade i am pleased as a tester i set the p73 to video and recorded to my amazement i managed to get nearly 30 mins in so i thought that was great and also i am able to take over 250 pictures with-out filling the card, i feel that this is ample space i mostly down load at the end of the hols etc but i have not reached the full card maximum as yet and of course once down-loaded you are free to start again,or less your a pro and snap at every thing in sight i honestly don,t think you need any more mb,s than 250, i feel that after all the use i have been having with the card i am confident to reassure the above as a great accessory for the Sony P73 Camera