I purchased the LaserMagic Tethered USB bundle for Windows to use with the program suite from Readerware. I have a collection of approximately 1600 books, 400 CDs and 250 DVDs. Cataloging can be tedious without a scanner! I like being able to go to the shelf, use the LaserChamp untethered and then just connect it to upload the barcode data. I have found it very easy to use.