I'm not sure if the galaxy S3 has the same file system as the s2 but I had a similar problem did you try going into /mnt/sdcard-ext.? Another forum member helped me out and it worked by going into that. It might also be the same issue as author's

oh yup that solves it then lol thank you very much

I'm not that great on searching forums but I looked on xda a bit and couldn't find much besides bootloader petitions for Verizon lol the transferring interface from comp to phone is a little bit different from my thunderbolt so maybe that has something to with it Either way I'll still be enjoying 60...

Sorry for the late reply I had work but I just tried to put it in the internal memory and it worked it seems if tho it reads the sd card as internal memory instead of the actual sd card files as that's where I found my Rom I put in there I probably won't have a lot of internal memory left but I'm su...

I recently upgraded from a thunderbolt to the galaxy s3 on Verizon the thunderbolt worked almost perfectly with fpse but for some reason I cannot choose my created folder for my roms and therefore unable to play anything. I'm not sure If I'm doing anything wrong or it's just an odd glitch. I'm using...