Simply put, what is the difference between chrome and regular magnetic tape, other than the obvious use of different metal used in the tape. My concerns are, is either designed for high speed use? Which has the superior recording quality? Does one have better rerecordable abilities? If a machine says CrO2 will it be damaged by using FeO2 tape in it? I'm sure there is a difference, I'm just not sure what it is so help me out guys, thanks.