Can OS/2 Warp read my drives compressed with Stacker, DoubleSpace, DriveSpace, or SuperStor?
Not by itself. It will safely ignore such drives if they exist. If you would like to continue using compressed drives, then Stacker Version 4 for OS/2 is right for you. Stacker for OS/2 can not only read and write Stacker compressed drives, but it can also safely convert DoubleSpace, DriveSpace, and SuperStor compressed drives to the more popular Stacker format.