This define exists in sys/dev/scsipi/st.c (1.3.3), my exabyte eliant 820
tape drive has several density codes above the maximum set by that define
(0x7f, 0x8c, and 0x90).  What is the purpose of this define anyway?  I
spent a while staring at documentation before I figured out that this was
why my ``mt density'' commands were failing...

Is there any reason I can't change this value?

						--Greg