Donald,

With Oracle 8.1.x all you need to do to use a third party media management
library
is to set that link.  You have the link set correctly, so Oracle should be
using
the TDP for Oracle library file.  You didn't by chance run the make command?
You might want to give Oracle support a call and ask why it is using the
test disk
library file, when the link has been changed.

James Thompson