Usage:

RegionSet DEVICE=DRIVE/K,REGION/N

Get region information from drive "CD0:":
RegionSet

Get region information from drive "CD1:":
RegionSet drive CD1:

Set "CD0:" to region 2:
RegionSet 2

Set "CD1:" to region 2:
RegionSet drive CD1: 1

Changes:

1.2 (27-Oct-2009)
 - Removed the io_Unit check from DoSCSICmd because some device drivers set
   this field to NULL even they open successfully

1.1 (26-Oct-2009)
 - First released version