KAKUNA  I went through many cataloging apps, testing their speed, memory usage, and user-friendliness. The contestents were DiskLibrary, Haxial's 2003 DiskCatalog, CDFinder, Media Indexer, Media Catalog, Media Indexer, and (of course) DiskCatalogMaker X 4.2.1. I tested them all on a 100GB drive with about 2000 files on it, and while some choked, or spent 5 minutes on it. Haxial's DiscCatalog was fairly zippy, but nothing comes close to DiskCatalogMaker. It scanned the whole drive within seconds, complete and reliable. Searches are just as fast, and the interface, while in it's current version less appealing than Media Catalog or DiskLibrary, is still comfortable.  
(Version 4.2.1)