Is my card bad?

I have a 128 Micro SD and noticed some music files dissappearing.  I went to backup my photos to my PC and each time I would move the directory a couple corrupt JPEGS would error out the process.

I found the 2 out of 2000 corrupt files and was able to back up.

Is the card bad or was it the jpeg problem and either way what happened?

I would guess it was the files that were somehow corrupted, not the card.