1. The recorder has a double recording head , similar to a two-track recorder. 2. They can scratch recording heads and throw the disk drive out of adjustment. 3. Unlike the recording head , the playback head has a single core. 4. Most disk drives built today use inductive thin-film recording heads . 5. MKQC manufactured and sold to Quantum magneto-resistive thin-film recording heads used in computer drives. 6. Billion recording heads by Seagate, NEW STRAITS TIMES-MANAGEMENT TIMES 7. A disadvantage of permalloy is that it is not very laminations and magnetic recording heads . 8. The latter are used in transformer and inductor cores, recording heads , microwave devices, and magnetic shielding. 9. The rejection of interference from the nearby rotating magnetic recording head made a color viewfinder practical. 10. Read-Rite produces magnetic recording heads for disk drives.