Hello ALL, I was using TechToolPro to do Performance MAINTENANCE / OPTIMIZATION on my MDD DUAL 1.25 MHz / 2 GB RAM / 120 & 200 GB HD / OS X.4.11. There was a power outage, a blink that caused my computer to restart in mid program and two of the partitions on one of my hard drives were no longer on my desktop. I tried TTP again and they did not show up there, I checked my SYSTEM PROFILER and they are listed but not mounted. WDC WD2000BB-00FTA0: Capacity: 186.31 GB Model: WDC WD2000BB-00FTA0 Revision: 15.05R15 Serial Number: WD-WMAEP1246266 Removable Media: No Detachable Drive: No BSD Name: disk2 Protocol: ATA Unit Number: 1 Socket Type: Internal OS9 Drivers: Yes S.M.A.R.T. status: Verified Volumes: DOCUMENTS: Capacity: 20.2 GB Writable: Yes File System: Journaled HFS+ BSD Name: disk2s10 Mount Point: HD 1: Capacity: 24.52 GB Available: 24.49 GB Writable: Yes File System: Journaled HFS+ BSD Name: disk2s12 Mount Point: /Volumes/HD 1 MUSIC: Capacity: 46.27 GB Writable: Yes File System: Journaled HFS+ BSD Name: disk2s14 Mount Point: I then used Mac Disk Utility to Verify Disk, it said they had to be repaired but when I clicked Repair Disk it said they could not be repaired. One stores all my music and the other all my document. Verifying volume “DOCUMENTS” Checking HFS Plus volume. Invalid B-tree node size The volume DOCUMENTS needs to be repaired. Error: The underlying task reported failure on exit 1 HFS volume checked Volume needs repair Verify and Repair disk “DOCUMENTS” Checking HFS Plus volume. Invalid B-tree node size Volume check failed. Error: The underlying task reported failure on exit 1 HFS volume checked 1 volume could not be repaired because of an error The Mount Points for the two missing partitions are: /Volumes/DOCUMENTS /Volumes/MUSIC The data is on the disk partitions and as far as I know undamaged but they will not mount on the Desktop. In OS9 there was a program called Mt Everything that worked in this situation but I have not found anything similar for OSX. Suggestions??? Dan A. Currie, Jr.