The disk you have selected for storing the Undo information may not have enough free space to hold all the Disk Doctor changes. Disk Doctor cannot determine ahead of time how much disk space is needed. The disk in drive %c1: only has %d2K free. To be safe, we recommend using a disk with at least %d3K free.
Select CONTINUE to use the disk in drive %c1: anyway.
Select NEW DISK to choose a different drive or floppy disk.