Businesses involved in the reproduction of sound recordings make copies of audio content from original or supplied master recordings. This can include duplicating music, spoken-word programmes, audiobooks, archive recordings and other audio for distribution, sale, internal use or preservation. Work may involve transferring recordings between formats, preparing digital files and checking copies for completeness and sound quality. For physical releases, services can include producing CDs, vinyl records or other audio media, along with printing labels, packaging and assembling finished copies. Some providers also prepare masters for manufacture, convert older or obsolete formats into accessible digital files, and organise the delivery of completed recordings. The exact range of services varies: some businesses focus on duplication and manufacturing, while others offer related audio preparation or media handling.