Entry of track times in the hh:mm:ss column must be of the same format - hours, minutes, and seconds all separated by colons. All seconds must be indicated, i.e. 7:00, not 7: , enter 7:20, not 7:2. If there are only seconds in the time, it must be preceded by zero minutes and the mandatory colon, i.e. 0:34, not :34 or 34.