Administrator privileges required for installation on PCs running Windows 2000 Professional, Windows XP Professional or Windows XP Home Edition.
So, what is the problem? Simply put, Sony's SonicStage won't allow you to run the software as a restricted user. Only with super-user privileges. Altough not a flaw as serious as Sony's latest approach to DRM, the installation of rootkits through music cd's, but a serious flaw none the less, that indulges most users to use their software as an administrator, what definitely is not a reasonable approach.
No workarounds available. Avoid this software and avoid "MiniDisc" devices that require it.