If your PS3 is acting up—games aren't showing in the XMB, it's lagging, or you’ve just installed a bunch of new packages—running a database rebuild is the standard fix PlayStation
Warning: Installing the wrong KDW PKG can lead to a "Data is corrupted" loop. Always verify the MD5 hash.
Obtain the KDW_Rebuild_Database.pkg file (often found in community KDW toolsets). Transfer: Move the file to a FAT32-formatted USB drive.
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