I just received DiskWarrior 3.0 yesterday. It works great and _very_ fast. I did have an issue with the SuperDrive after Rebuilding from the CD. As Alsoft tells you in the ReadMe, when you Quit DW3 from the CD, the PowerMac hangs, so you simply Shut Down manually (hold down the power button for 5 seconds or so.) When I rebooted, CDs and DVDs in the drive wouldn't show on the desktop. I think what fixed it was to Repair Permissions. As for your problem, if you have two drives and can install OS X on the 2nd drive so you could boot from it, I think you could use the downloaded DiskWarrior 3, which is available from http://www.alsoft.com and fix the Cats and B-Trees today. You would order "Download & CD" DW3 for $79.95, download it and install on the 2nd drive, then boot from the 2nd drive, so you can repair your 1st drive. For delivery of the CD, Alsoft is way back ordered. I ordered my copy over a month ago. HTH. Brian Conner -----Original Message----- From: Power Macintosh G4 List [mailto:G4 at lists.themacintoshguy.com] On Behalf Of Goldberg, Franck (x2187) Sent: Tuesday, June 10, 2003 9:23 AM To: Power Macintosh G4 List Subject: [G4] Catalog B-tree damaged ? After a recent MS Explorer crash, I ran Symantec (Norton) Disk Doctor. Without success, as it stopped with error 23019. Apple Disk Utility said my disk "appeared to be fine". Symantec Online Technical Support informs me that 23019 means that the Catalog B-tree is damaged, and the solution is to back up and reformat. Are there any ways to fix this without backing up and reformatting? Would Micromat Drive10 fix it? SubRosa Soft DiskGuardian? (DiskWarrior X is not currently available). Any suggestions appreciated. Thanks. Dual 800 G4, 10.2.6.