I am posting here because I can’t find a solution to this problem elsewhere. I cannot add or remove media from my microsd through the sansa. The added media will show up when I first drag and drop it however when I remove the sansa from my computer and it proceeds to refresh my media, the songs are missing. The media also does not show up when I plug the sansa back in and look for the added files in the appropriate directory. The USB mode is set to MSC. The microsd is nowhere near capacity and I have tried reformatting the Sansa to no avail. When I try reformatting the microSD itself windows says it is unable to complete the reformat so perhaps the issues lies in that? At this point I am very frustrated and don’t know what to do so any help would be appreciated.