99.99% of the time this is due to an audio file (FLAC or MP3) that corrupted upon download to your computer. Don't worry, this corrupted file will not affect any other aspect of your computer. If you encounter a problem like this, the best thing to do is delete the file on your computer that is corrupt and return to your stash and, into a new directory, download a new version of the file that is giving you trouble. On very infrequent occasions, you may hear a brief burst of digital noise on a track. Unfortunately, this may be an error that exists on the master tape. When this happens, we usually make a judgment call as to the severity of the glitch versus the 'heat of the show.' We certainly aren't going to hold a great show back because of a one second smudge.