This drivers are original drivers from compaq Storage utility software cd set.
Compaq does.nt provide them nowhere on web or ftp officially.Also we was unable to find them from web after heavy searching with 3 people (and believe,i almost allways find driver if tehere exists one.)
So qompag sucks a lot with their policy.(this drive is actually sony sdx-400c internal tape drive,manufactured und labeled spetially for compag as oem product,but does not accept original sony drivers)Driver works perfect with seagate(veritas) and all other backup programs i have used under windows NT/2000.
I have not tried them to external drive.So get em if needed )))))