I first came to know the Oedipus recording as a student in the early 70's, when Stravinsky was a set composer on my course. The CD version is excellent, everything brought together under Ancerl's expert guidance, even the narration integrated into the whole. I can do no better than endorse the previous reviewer's enthusiasm, and confirm the clarity of the transfer. Stravinsky's own 2nd version from the early 60's is interesting, and he made an earlier recording in 1951 (with Peter Pears & Martha Modl in the leads, and Cocteau narrating), which is also very fine, but never made it onto CD (for details of copies, contact me on email@example.com).
This excellent disc also includes the greatest version of Symphony of Psalms ever made, worth the price just for the marvellous playing of the horn section in the 3rd movement (it's unkind to pick out just one example, but the list of details would be a long one!). I don't think we shall ever hear performances of this calibre again.