Tigerdirect has a terrible rep, just use Amazon, they have a few for $38-40,
A long time ago i purchased 2 of those dual card adapters for PSP's and i noticed the same problem, my solution to that problem was to place both memory cards into the adapter, place into the psp, and format from the psp. I made sure to separately check each memory card to see if it functioned beforehand and made sure they were both running the same partitioning, like fat or fat32, obviously it was fat32. Then i formatted them on the psp and i had to transfer everything while the memory card was in the psp rather than plugging it directly to a computer, it was slow but it worked. Im also pretty sure it only works up to 32GB. So the best configuration for one of those dual adapters would be 2 16GB's. Also if you load lets say like 15GB's of Isos then try to load another large iso as its transitioning from one of the 16GB's to the other, it creates errors. Like it wont load half the iso onto one stick and half onto the other. So you have to do some mental math and move things around correctly. and there will always be some extra space you might not ever fill up.
As far as i know, no. 32GB is pretty much the max. Now im speaking in reference to the chinese made adapter that usually sells for like 3 bucks now. Used to be 14 bucks.
All "micro sd" cards are the same physical size/format, but some are faster at reading/writing data than others. Speed of the card is rated as "Class", and a Class 2 card is much slower than a class 10 (they're rated 2, 4, 6, 8, and 10). Samsung and Sandisk are just different manufacturers.
so cards from manufacturers such as patriot and kingston, etc would be the same regardless? (unless the class is different)
Yep, just different manufacturers, the sd cards are the same (although keep in mind there are three different physical card sizes, regular, mini, and micro sd). However, 64gb and higher cards may not work in some devices (psp is max 32gb I think).
