In this case, it seems that the backup file has been corrupted; you may perform a manual restore from the following steps:

1- If your backup is stored on CD/DVD, copy the backup file to a local hard disk location. If you got an error message telling you that the data can't be copied, then you might need to use a CD/DVD data recovery utility such as ISObuster (shareware)

2- If your backup files were backed up in EXE format, then extract the .gbp file by going to "Tools" in the menu bar then choosing "Extract Archive from EXE file"

3- Genie Backup Manager uses Zip format to backup your data, so you can use any compression utility that supports zip (such as 7zip - freeware) to open the file, by renaming the .gbp extension to .zip.

4- After opening the renamed file, extract its contents to a temp location of your choice. Now you have all your data, but you need to restore it manually.

5- If you still couldn't open the file, then:

• Download this small utility
  http://www.genie-soft.com/download/ZIPFIX.EXE (75kb)
  or http://www.genie-soft.com/download/ZIP_Repair.exe (397kb)
• Start the application then choose the renamed zip file and click next
• If the corruption wasn't too severe, your file should now be fixed and saved under a new name (Salvaged.zip) … rename the file back to gbp and trying restoring using GBM. If the same problem persists, then retry step 4

If you had your backup data spanned over multiple disks, you can repeat the same process with the sequentially numbered files (*.C000, *.C001, *.C002 etc ...) renaming each file to (.zip)