Segovia's output has been subjected to what must be the world's worst version control. It is very difficult to avoid duplication.
The 1969 recording of Castles of Spain is the definitive Segovia recording, but he only recorded 8 of the 15 movements. For a superb rendition get the full recording by Ana Vidovoc on NAXOS. Segovia premiered the Fantasia and the May 1958 recording is the one you want.
There is a good Segovia box set on Deutsche Gramophone, for whom Segovia did much of his best work. It includes the Fantasia and the Castles of Spain work you've already got.
We don't play classical guitar the same way we did in Segovia's early career. These days we play music slower, within our skillsets, and with far less rubato. For superb classical guitar work without duplication, buy albums by David Russell. If you're willing to put up with the odd track featuring single note melodies on the guitar accompanied by a full orchestra, then John Williams is your man (he's great, but experiments outside the classical guitar box a lot more than other musicians). Again, with John Williams, it's not always easy to avoid duplication.
If you're up for a classical guitar radio show check out Classical Guitar Alive on radio KMFA in Austin, Texas. There's also a podcast of the last couple of shows at http://cjsf.ca/pguide/grid/description.php?ID=116