I?ve got my new Lumia 820 and had a Nokia SD Card inserted and loaded with all my photos, music, videos, etc from my old phone. It appears to be good at first but when I tried to add songs to the memory card, the new songs won?t appear on the music menu.. I tried to eject the card and re-transferred the files. I could see the files on the memory card but when I inserted it on the lumia, he files are still missing. I wish there is a FILE MANAGER on Lumia so we could check existing files on both phone and memory card but I can?t find it either. I even tried rebooting my Lumia but still the file is missing. I tried again transferring a single song from my laptop to the memory card 3x in different folders inside my memory card but still that song won?t appear. I am so damn sure the mp3 file is working. I am very upset.I cant even create playlists with the songs I wanted in just one playlist. Can somebody please help me? Thanks in advance! <3