I installed a SanDisk Pixtor 64gb micro SD, and it works great. I put all of my pictures and music on it before I installed it. Scanning through pictures is lightning fast. The first time I opened a picture folder, it said there were no files, and I thought I had a problem, but I guess it has to set up the picture files. After 10 seconds or so they would then display. Will all of the success stories, it looks like 64gb is a safe bet, though I suggest not skimping and buying fast and quality cards.