Hello Pete,

For the official answer to installing on multiple machines, I'll quote our EULA:

Quote:


PG Music Inc. License Agreement

CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE COMPLETING THE INSTALLATION OF THIS SOFTWARE. USAGE OF THE SOFTWARE INDICATES YOUR ACCEPTANCE OF THE FOLLOWING TERMS AND CONDITIONS.

LICENSE

A. The program may only be used on a single machine.
B. You may transfer the program and license to another party if the other party agrees to accept the terms of this Agreement. If you transfer the program, you must either transfer all copies, whether in printed or machine readable form, to the same party, or, destroy all copies not transferred. This includes all modifications and/or portions of the program merged into other programs.
C. You may receive the program in more than one media. Regardless of the type or size of media you receive, you may install or use the media on a single machine.
D. The program (including any images, “applets,” photographs, animations, video, audio, music, and text incorporated into the program) is owned by PG Music Inc. or its suppliers, and is protected by international copyright laws and international treaty provisions.




If you have any questions about this feel free to contact our sales department. If you're on the go, you could always uninstall it from your home computer and install to your mobile computer.

As far as reasons why you would install on your internal drive, you may experience a slight performance boost if you install it on your internal drive; as the lower bandwidth of the USB connection could be a bottleneck. I imagine the activities that would be faster would be any that involve loading information from the hard drive into memory, such as when the program is being opened or when generating RealTracks (the first time, at least, while they are loaded from the drive into memory).

Kind regards,
Will

PG Music Inc.
Sales: 1-800-268-6272
Technical Support: 1-866-983-2474
Full contact information is available here.