The new Travelstar 80GN breaks current areal density records by allowing up to 70Gbits/ per square inch to be written on each disk..The innovative hard drive design combines AFC Media, Fluid Dynamic Bearing (FDB) motor technology, Giant Magnetoresistive (GMR) heads, Partial Response Maximum Likelihood (PRML) digital channel, head load/unload technology, Enhanced Adaptive Batter Life ExtenderTM (ABLE) 3.