The MDS-4 Professional Degausser is designed to handle all formats of cassettes and tape reels up to 16 inches in diameter. The MDS-4 operates continuously without overheating in the low field strength setting and intermittently in the high field strength setting. In low, the MDS-4 erases formats such as VHS, diskettes and audiocassettes. In high, the MDS-4 will erase 1 inch reels, U-matic, S-VHS, DAT and 8mm. The MDS-4 can erase tapes with coercivities up to 950 oersteds with widths up to 1 inch and 1500 oersted tapes with widths up to 8mm.