Someone who is very experienced has suggested doing a bulk erase on a TK50 tape and using it in a TK70 tape drive! Has anyone ever done so and what happened? I want to decide if a TK70 is the drive for doing backups? It is more than twice as fast as a TK50 and the capacity is about 4 times when a TK70 is used. Also, the "/VERIFY:ONLY" switch in BUP works very well taking less than double the time as a straight RESTORE. Can anyone else comment please?