kaplow@34828.DEC.COM (There is no 'N' in TURNKEY) (09/03/86)
Special equipment is needed to format TU58s, and this cannot be
done by the TU58 itself. The TU58 tape is sold pre-formatted, either
by DEC, or one of the other cartridge vendors. There is no way it
can be re-formatted by your VAX 11/730 or any other TU58 drive in
the field. When the formatting is somehow damaged, it is time to
replace the tape.