That seems to envolve a lot of work but...
OK I record 1 note in *.wav,from a Preset of roland XP-80. But what to do next? How I convert this audio file into something like a soundbank?

The programs I mainly use are:
-Cubasis VST
-Vienna studio
-Cool edit 2000 or Wavlab lite

What can I do for Cubasis VST accept a new soundbank instead of GM?