Among the contents of the drive are unreleased songs from the past six years and two songs which should be released on a new single in a few weeks. Apparently those two songs on the drive were the only instance they had, off-site backups only contained older "beta" versions of the songs. As the band is touring at the moment (i.e. no time for re-recording the songs), it's unclear whether the single can be released in time.
 Well, I am a paranoid computer geek, and I'm probably not a normal person, but you get the point ;-)
 Oh, and if the thieves are stupid enough they will get caught while uploading the files ;-)