We've been using the CAssmark (Shandon) for a few years now. Heat burns the
number on to the cassette via a carbon tape - no smudging, very easy to use.
Get the reps to let you test drive a few and then make your selection.
Annie

Anne S. van Binsbergen
S.A.I.M.R./Chris Hani Baragwanath Hospital
Johannesburg
South Africa

+2711 4898717 (fax)
+2711 4898711