Record Collecting Miscellanies: Run Out Groove Messages
Sometimes record engineers, band members, label people, or other unknown individuals will inscribe funny messages or insider jokes on the run-out grooves of records. These spaces near the label of the record are often inscribed with matrix numbers that contain record manufacturing or label information. Dates, pressing number, plant identification, logos, initials, and other information can be gleaned by the avid record fan. These details may reveal when the record was cut, who engineered it, where it was pressed, etc. The numbers, for instance, usually are different than the catalog number, yet many minor labels print the catalog number and record side in the groove as well -- probably because their pressing runs are smaller. For example, Green Day's Slappy EP has a matrix number of L35573, but also has Lookout 35-A designating the label number scratched into the wax, as well as the initials, D.W.K. Many major label records have less information, which may refer to the order of ...