VCRs record and playback audio and video signals using magnetic heads. At a maximum, all VCRs use the following magnetic heads:
The way these heads record information on the tape is similar for the three formats, though the exact track widths and specifications vary. The recording formats for VHS, Beta, and 8 mm are shown in Fig. 33.17. The relative location of the heads in the three types of VCRs is shown in Fig. 33.18.