cat No, # The Calalogue number is the number assigned to a release by the record company. Generally different formats and/or remixes of the same release will each have their own catalogue number.
An designation consisting of letters and/or numbers which cleary identifies a recording. The record company chooses itself the catalogue number. More information at [Information on the cover/label
A unique identity code you choose for your product. All components of the product must be labelled with this code to ensure proper handling of your order.