If you ordered Sonar after March 1, 2002, you are elligible for a free upgrade to version 2. To get the upgrade, call Cakewalk at 1-888-CAKEWALK and tell them you need an upgrade and when you purchased Sonar.

There is also an added benefit to having both versions; Tassman DXI (direct-x instrument) is not included in version 2, but will be available if you install version 1 first.