Does anyone know where I can get formatted 640 mbs tapes for back ups for Definity G3 v11 systems? I have a blank tape brand new but when I try to use it I get an error that says the tape is not formatted correctly. I know this is a huge long shot but I have to try. I have several systems that need back up tapes as the original ones are now 20+ yrs old an failing. I have no Avaya access to request them.....