Just out of curiosity, how big of an sd card are you using?
Started out with 16GB card. Moved to 32GB card -- that got fried. Put different 32GB card in second GS3 -- that got fried, too. Have third 32GB card in third GS3.
Any reformats to it or anything before using it?
No -- stuck cards in phone, formatted using the phone. Not formatted or reformatted using a PC.
Not the battery per se. First phone overheated while playing music (nothing else). Second phone just froze, not overheated, and trashed the SD card.
Sorry for the bad luck you are having but I haven't nearly heard of sdcards frying that much is the gs3.
Well, I only personally know two people who have the GS3s -- and BOTH of us have had our phones trash our SD cards. But, I've been following this forum and the Phandroid SG3 forum -- and every day, another new person posts about THEIR SG3 doing this. So -- it's not just us two, and the number is growing daily. I also know quite a few people that have OTHER phones, even Samsung phones, and they haven't had the SD card problem.
Don't get me wrong i have but not as severe as it seemed you posted.
Level of severity is a matter of PERSONAL perspective. When both the SG3s you own trash the SD cards, and in the process, wipe out movies and pictures you can't recover -- that IS "severe" to you.
I never said this was an "epidemic" problem -- and even stated that if 1000 of us are inflicted with this, that is still a very small percentage of the total in circulation (less than 1%). But it's like being injured in a car accident where someone runs into you -- the fact that only a very small percentage of folks suffer such injuries is of no consolation to you, personally.