The drive can physically tell what type of cartridge is in it. The
Extended Length upgrade adds the ability to read/write the longer tapes,
but doesn't take away any other capabilities.
If you look at the label end of a 3590 tape, there are two plastic inserts
below the label (if the gear drive side is down). There are notches taken
out of these inserts which allow the drive to tell what type of tape it is.
CE cartridges, Cleaning tapes, 3590, 3590XL, all have different codes with
the notches.
Nick Cassimatis
[EMAIL PROTECTED]
"I'm one cookie away from happy." - Snoopy (Charles Schulz)