At least that's what the pc seemed to be claiming. It's a Dell Inspiron laptop, about 6 years old. I connected the S5 to it via usb. The pc found a lot of files on the S5, and I told it to import them. It did with less than half of them and said it couldn't with the rest. Then I tried to get some mp3s copied from the pc. I got this weird message that maybe it could copy but the S5 might not be able to play that. Then it claimed it couldn't copy at all, and apparently claimed that the S5 could not play mp3s at all. What can I do about this?