I installed Rapture Pro and just accepted the defaults.  Rapture Pro installed on the sys (C:) drive including the content.  I would like to move the content to a "content/samples" drive.  How do I tell Rapture Pro where to look for the moved content?

Rapture Pro uses registry key SampleDataDir in HKEY_LOCAL_MACHINE\SOFTWARE\Cakewalk Music Software. The default value for this key is "C:\Cakewalk Content\Cakewalk Sample Data." There is a "Rapture Pro" folder here containing "LFO Waveforms", Multisamples and Tunings.
 
I believe the new installer permits reseting the value for SampleDataDir. I am not sure it will move the existing content so you would have to copy the rest of the expansion packs by hand or re-install them.
 
Another way is directly edit the registry and modify SampleDataDir
 
Or use mklink and create a directory junction for the folder being moved. This could be Rapture Pro or just the Multisamples folder under it. There are numerous examples of moving folders with mklink. A Google search using
site:forum.cakewalk.com scook mklink
should bring up quite a few threads describing the process. If you have a specific source and target you need help with, I can give you the exact syntax for the command.

Sadly no settings for this still in the UI:
http://forum.cakewalk.com...registry-m3235502.aspx