Original sentence: DCC used a Magneto-Resistive (MR) head, which was fixed to the mechanism of the player/recorder, unlike rotatary heads that are used in helical scan systems such as DAT or VHS to increase head-to-tape speed
Edited sentence: DCC used a Magneto-Resistive (MR) head, which was fixed to the mechanism of the player/recorder, unlike rotary heads that are used in helical scan systems such as DAT or VHS to increase head-to-tape speed