The length of the tape’s path along which tape and head are in intimate contact. Sometimes measured as the angle of arrival and departure of the tape with respect to the head.
"I wanted to send this to thank you for the great job you did on our wedding music cd's- the quality is exceptional, they arrived back in short time and great shape. I've already told my friends about your great service! It's nice to know there is a place to send music to be restored and captured for posterity! Thanks!..."