I was looking for some cheap Sony Memory Sticks for my PSP as I’m in need of a lot more space for music, video etc… However, the state of the flash memory market hasn’t changed and PRO DUO cards are still much more expensive than Micro SD cards. An 8GB PRO duo costs around £25 whereas 8GB Micro SD can range from £8-£15. So I was thrilled when I spied this:

Dual Micro SD PRO DUO Adapter

And was salivating at the prosepct of paying £18 for 16GB of PRO DUO storage instead of £55. That’s right, you can pop in 2 Micro SD cards up to 16GB and use them both as one drive in PRO DUO devices. It seems too good to be true, but it works and apparently there are no drawbacks. The only problem was that these £8 8GB Micro SD cards were only Class 2, meaning I may have to shell out more making it less of a bargain, there was lots of information available on the “minimum” write speeds of SD cards and the “maximum” write speeds of PRO DUO cards but I couldn’t find any concrete data on how fast cards should actually be.

So as usual I went crazy and I decided to benchmark a few cards to see if I would be losing out by using 2 Micro SD cards instead of a normal PRO DUO and to see if I was going to be sitting around checking my watch while this “Class 2″ SD card loaded stuff. Read on for graphs etc. Read the rest of this entry »