Frankie "Frankie"
I bought the 32gb version here for my Samsung Proclaim android phone (Straight Talk Wireless model). Removed my current 4gb card from the phone, put it in one card reader in my Mac, then put the new 32gb card in another card reader in my Mac, copied all phone files over to the new card (saving the old 4gb as a backup for now). (Note: I did not have to do any formatting of the new card to read it on the Mac or in the phone.) Inserted 32gb in my phone, booted it up and have had no problems in first hour of use. Will update if I notice overheating, card failure, etc. as reported by a few others here. I'm showing about 29.3 gb of available storage on the card as received from Amazon (before copying my files to it).