A space dividing tracks , recorded within the track data area at its end. The post-gap is 150 sectors (2 seconds) long and is required only where successive tracks are of different types. However, because many disk replicators expect a post-gap at the end of every track and may erroneously strip out data sectors if they do not find one, Easy-CD Pro Software records a post-gap after every track. See also "About Gaps Between Tracks ".