Understanding the Terms

Obtain the KDW_Rebuild_Database.pkg file (often found in community KDW toolsets). Transfer: Move the file to a FAT32-formatted USB drive.

[Check your favorite PS3 Homebrew forum - we don't host files here for copyright safety]

The KDW tool is popular because it allows you to trigger a rebuild directly from the XMB without needing to power cycle into Safe Mode. Locate Custom Firmware Tools