What are some alternatives?
When comparing Wincatalog Light and Disk Explorer Professional, you can also consider the following products
Virtual Volumes View - VVV uses a relational database to store its data.
abeMeda - abeMeda is a powerful and very fast disk cataloging tool, reading metadata like EXIF, IPTC, JPG, TIFF, MP3, AAC (iTunes)
DiskCatalogMaker - Simple, smart and fast disc management tool.
Cathy - An extremly small, very fast and easy to use media cataloging tool.
Camel Disc Catalog - Camel Disc Catalog is a DVD and CD Catalog that generates a computer database to keep track and find any disk in a snap
TagSpaces - TagSpaces is an open source platform for personal data management. With TagSpaces you can manage and organize the files on your laptop, tablet or smart phone.