The record industry makes every effort to insure that their commercially released records will play properly and hold true to the sound recorded by the recording artist. Test Pressings are run using the ?stampers? that will be used for the final pressings. These pressings are samples made prior to production. In appearance test pressings typically have plain white labels, with all other identifiers hand printed in ink. When a record pressing plant does a test pressing, they press 5 copies, 3 for the record label, and two for their files. This requires the press to stamp 5 times to produce 5 copies. Tests must be approved before the plant will go ahead and run the records. Test pressing are run to check for the following: Noise, pops occurring in the same place on each test pressing.