Thin-film media
Updated: 04/26/2017 by Computer Hope
Thin-film media is the coating found on many hard drive platters and is a replacement for the oxide media used with earlier hard drive platters. Because thin-film media is thinner and smoother than oxide media, the hard disk drive read/write heads can float closer to the platter. By floating closer to the platter, the read/write magnetic field is weaker, which means the tracks can be closer together allowing more data to be stored on the drive.