Aye; the best version to get would be the 1968 version which Carl Orff himself endorsed.
After doing a little research I found it.
According to Wikipedia: "Eugen Jochum with the Chor und Orchester der Deutschen Oper Berlin and Gundula Janowitz, Gerhard Stolze, and Dietrich Fischer-Dieskau. Recorded October 1967 in Berlin's Ufa-Studio, released 1968 (Deutsche Grammophon). This version was endorsed by Carl Orff himself and was the first choice of the BBC Radio 3 CD Review "Building a Library" review in 1995 [2]."
Here you go:
01. Fortuna Imperatrix Mundi - O Fortuna [0:02:35.72]
02. Fortuna Imperatrix Mundi - Fortune plango vulnera [0:02:40.03]
03. I Primo Vere - Veris leta facies [0:03:28.00]
04. I Primo Vere - Omnia Sol temperat [0:02:03.37]
05. I Primo Vere - Ecce gratum [0:02:39.63]
06. Uf dem anger - Tanz [0:01:42.50]
07. Uf dem anger - Floret silva nobilis [0:03:02.00]
08. Uf dem anger - Chramer, gip die varwe mir [0:02:59.07]
09. Uf dem anger - Reie; Swaz hie gat umbe; Chume, chum, geselle min!; Swaz hie gat umbe [0:03:59.30]
10. Uf dem anger - Were diu werlt alle min [0:00:57.38]
11. II In Taberna - Estuans interius [0:02:13.00]
12. II In Taberna - Olim lacus colueram [0:03:24.57]
13. II In Taberna - Ego sum abbas [0:01:31.28]
14. II In Taberna - In taberna quando sumus [0:03:09.65]
15. III Cour D'Amours - Amor volat undique [0:03:01.70]
16. III Cour D'Amours - Dies, nox et omnia [0:01:58.37]
17. III Cour D'Amours - Stetit puella [0:01:49.43]
18. III Cour D'Amours - Circa mea pectora [0:02:10.60]
19. III Cour D'Amours - Si puer cum peullula [0:00:58.20]
20. III Cour D'Amours - Veni, veni, venias [0:01:00.00]
21. III Cour D'Amours - In trutina [0:01:53.62]
22. III Cour D'Amours - Tempus est Iocundum [0:02:09.20]
23. III Cour D'Amours - Dulcissime [0:00:34.15]
24. Blanziflor et Helena - Ave, formosissima [0:01:39.05]
25. Fortuna Imperatrix Mundi - O Fortuna [0:02:32.43]
Format: APE & CUE 1 Cd Covers Size: 267 Mb
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http://rapidshare.com/files/38842517/CarBurCanPro1937.part1.rar
http://rapidshare.com/files/38845240/CarBurCanPro1937.part2.rar
http://rapidshare.com/files/38848211/CarBurCanPro1937.part3.rar
http://rapidshare.com/files/38851450/CarBurCanPro1937.part4.rar
http://rapidshare.com/files/38854752/CarBurCanPro1937.part5.rar
http://rapidshare.com/files/38855879/CarBurCanPro1937.part6.rar