License Лицензия МПТР России ВАФ № 77-178 or Лицензия Роскомнадзора № 77-348 usually mentioned on covers.
The company shares physical address and web site with OOO "ЭЛАЙН М" - probably the 2 companies belong to one holding company.
The company works on the Official market, manufactures releases for leading Russian official major & independent labels such as S.B.A./GALA Records, Союз, Soyuz Music, Снегири and many others.
Also some pirate DVDs (usually under DVD Клуб logo) mention ООО «Ди Ви Ди-Клуб» as a manufacturer. It's unknown if the company has any relations to such pirate releases, as the pirate DVDs do not use any IFPI Mould codes.