Actually I am looking for a thread to solve my problem, but instead I found this thread.
I bought an Transcend 32GB class 10 an it work beatifully OOB. However I've replaced this memory card 3 times because it failed when copy a lot of data. It just not faid but after the error copying I couldnt use the card anymore. I tried to format and it get worst.
It happen when I backup and all three times I had it failed occurred when I trying to backup my file into it.
I won;t buy Transcend anymore.
[Phone]: LG Optimus 4X HD + Xperia Ray ST18i + MW1 smartheadset pro + LiveView MN8
[Previously owned] Xperia Z 6303, Xperia SP C5303, Xperia S LT26i, Xperia Neo MT15i, SE, W995, SE W700i