It's called My Media Catalog, and it is also capable of cataloging all kinds of media. The interface isn't quite as pretty as some competitors, but I took a lot of time incorporating multiple barcode lookup databases into the service, so my users tend to find barcode/ISBN scanning to be much more accurate. I also try to be very available to customers to answer questions and feature requests; there are many users that mention this in the feedback. Definitely worth a shot, especially if you have lots of rare books/media, or stuff from other countries.
My Media Catalog at Google Play