CPV code 92121000 designates Video-tape distribution services in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
92121000 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 92120000 (Motion-picture or video-tape distribution services).