The studio work lasted many months, during which they had worked with Peter Penko, Dali Strniša, Rok Golob and Žare Pak. On 13 August 2003 the result was released with KifKif Records: Siddharta's third studio album "Rh-".The release of the album "Rh-" had been foretold by the single Rave. Directed by Petar Pašić, the video for Rave was recorded in Belgrade. The video was a huge success on national charts and was played on MTV within the World Chart Express. An English version of the album was recorded and released on Slovenian market as a special limited-edition album on 1 September 2003. The album was released in unique bloodbag-resembling packages and in music stores placed on transfusion hangers. The special-edition album was released in 1,500 copies, which were sold out in a matter of days.