The reconstruction process requires specifying two disk extents:

• Extent 1: Sectors 63 to 997951 on disk 1
• Extent 2: Sectors 63 to 997951 on disk 2

If the first sector of extent 1 is incorrectly specified (for example, as sector 0), data can still be recovered because File Scavenger® can detect and compensate for this error. If the last sector of extent 1 or the first sector of extent 2 is incorrect, all sectors on disk 2 will have incorrect offsets and only data on disk 1 will be recovered. The last sector of disk 2 can be incorrect without much effect on the recovery.

The accurate size of a disk can be determined by the following:

• Select the disk in the File Scavenger® Look In box. Make sure to select the disk number (such as Disk 1), not the drive letter (such as D).
• Click File, Disk Image, Create. The value in the To Sector field is the last sector number. This value plus one is the size of the disk.