This CD contains 4 distinctly different versions of the title theme from the programme (the original 60s-70s with TARDIS effect, the early 80s, the mid 80s/'Trial of the Time Lord', and the late 80s - intro and exit themes). It also contains some terrible incidental music from the equally terrible seasons 24-25 (1987-1988). There is ONE very important reason to own this CD however. Although all of the other Doctor Who themes seem to be available elsewhere, and usually in better quality and at greater length, this is the ONLY CD I have ever been able to find that contains the unique and excellent Dominic Glynn version from season 23 - 'the Trail of the Time Lord' (which I consider to be the 6th Doctor's definitive theme as the previous season was merely a slight rehash of the early 80s theme). That makes this CD unique and a must have - if only for that reason. Unless, of course, you happened to hate that version.