how to backup Ultima III ?

[jky101@curtiss.cac.psu.edu (Ji K. Yu)]

 Hello, I just found my old original Ultima III disk in my brother's
 collection box. It is still working, but I really worry about physical
 wearing on original disk. I tried to backup to another disk...hmm.. this
 reminds me of old tricks again. I only remember I can copy this using the
 combination of copyIIplus 4.3 bitcopy and E.D.D. III...but..how?
 ahh.. that was too long times ago..(sigh)


 I welcome any suggestion or comment!


 -Ji