Arno Kletzander <Arno_1983 at gmx.de> wrote: I have previously heard of people connecting TK50 drives to TK70 controllers. Supposedly it results in better performance. I don't know if you lose the ability to write TK50 tapes this way or not. This is the first time I hear about the opposite combination, but I have to assume it works - whoever put it together obviously had it working, otherwise the combo you have in your hands would not exist. But I won't venture a guess as to whether that combo can read/write TK70 tapes or just read TK50s. MS