Fifty years, 11 Doctors and 45 tracks, this is the release that Doctor Who fans have been waiting for.

Assembled after years of research and trawls through dusty archives and libraries it's a compilation of the very special music that has accompanied the Doctor over his travels through time and space from William Hartnell in 1963 to present day Matt Smith.

From Ron Grainer's iconic theme realized by the BBC Radiophonic Workshop's Delia Derbyshire to Murray Gold's orchestral tapestries, this is a sci-fi musical saga.

The esteemed 2-CD collection of composers featured include Tristram Cary, Brian Hodgson, Dudley Simpson, Geoffrey Burgon, Paddy Kingsland, Roger Limb, Malcolm Clarke, Keff McCulloch, Dominic Glynn, John Debney and more.

The set includes liner notes from Doctor Who composer Mark Ayres on the history of music in the series and details of the episodes.

'The Caves of Androzani' was Roger Limb's seventh of eight contributions to the series, and the first of his two very succesfull collaborations with director Graeme Harper. Broadcast in March 1984, the 4 episodes showed the regeneration of The Fifth Doctor (Peter Davison) into The Sixth Doctor (Colin Baker). In 2009 The Caves Of Androzani was voted the best in the history of the series by fans.

If you would like to win a copy of either one of these new 'Dr. Who' CDs (our choice when it comes to mailing), just answer this easy question about the Doctors! In "The End of Time: Part Two" the tenth Doctor's life comes to an end, and he must regenerate, but who causes the tenth Doctor's death?!

Send us your answers and if you're correct you'll be in the running to win one of these wonderful 'Doctor Who' OST CDs. Just send us an e:mail here before September 15th with your answer and the subject title CONTEST: DOCTOR WHO OST CDs to: exclusivemagazine@flash.net

'Doctor Who - The 50th Anniversary Collection' CD Purchase Link