I put this in my computer and it didn't read it I tried disk and Device Manager just didn't work and I'm trying to let Amazon know that I'm handicapped and I'll have a hard time getting to the drop off point to return thing. I want to make them aware I'm not trolling for money and product though. I didn't even know that that happened until I was on eBay this weekend. It could be that it's not meant for my computer I don't know but if I can't read it I can't format it so that's where I stand and I just tried the other one and it didn't work either so if I can get them to drop off point or get somebody to take it I can take care of it but I just may be swinging in the breeze on this one but it happens to all of us sooner or later. A follow up I took this out just on a hunch from the computer that I was using it in that was obviously having problems and plug it into another and heard that little ding ding ding that told me that something had connected so obviously it is working it was the court on the computer that wasn't so all is good I guess I haven't put anything on it yet I think I'm going to put some music on it and try it in my wonderful headphones that I bought here those Bluetooth headphones are awesome for that.