I bought a 64 GB micro SD when I got my Galaxy S4 a year ago. It has served every purpose I needed it to serve until now. Yesterday I added a few songs to the card. like 12 songs. seemed like it worked fine. But weird little things always seem to happen when I add music. It seemed all fine when I downloaded it. This morning I went to listen to my music, and the songs I downloaded said they werent supported by the media player. Then I discovered that none of my thousands of songs were supported by the media player. I couldnt play any of my music. went back into my music a few minutes later, and all of my music was completely gone. Looked in my photos, and they were all gone. Went into the settings, and the phone said there was no SD card in the phone. When I took the sd card out and put it back in again, it said it was blank and that Id need to format it and erase everything off of it. I took out the card and plugged it into my computer. It said the same thing. I couldnt access the card until I formatted it, and formatting it would erase all the data on the card. This came completely out of nowhere. Theres no logical reason that adding a few songs would have caused my SD card to get destroyed. The music on it is no problem, but I also have on there hundreds of pictures that arent backed up anywhere else, app data Id prefer not to lose, and maybe more importantly, hours and hours worth of save data from all my emulator games that I havent completed yet. Please tell me theres something I can do to fix this or at least someplace I can take this SD card to extract the data out of it. If I really have to delete all those pictures and lose all my save data I may cry myself to sleep for a week. please help me.