Adam Simmons wrote:Well technically U3 has been around for 2 years, although it may just be that they had already manufactured millions of U1 printed cards and just used them up before switching over, but without having any official technical specs from Sandisk it's not possible to say if they have the same physical components inside.
I was just pointing out that going by the labeling the performance is not the same
Fair enough, though technically its the certification of attainment of a certain minimum performance that isn't the same rather than the actual stated minimum performance. In any case, semantics really. I'm pretty sure that 95 MB/s card's been in production quite a while now, though 2 years is a long time.
With regard to the speed tests, that's close enough to be within experimental error and random card/controller variation, so its *probably* safe, but technically not 100% guaranteed. If there's any way you can pull the full internal model # of the controller that would resolve it pretty much for sure since that indicates identical card internal hardware; I know you can when testing cards with Magic Lateran on Canon cams as well as getting more realistic speed test results so if you have a Canon SD card DSLR, you can give that a shot. Also, testing recordings at the highest bitrates on both cards and comparing for dropped/corrupted frames would be pretty conclusive. But ultimately, if you want to be super safe and the difference in price isn't much, then it can't hurt to go with U3.