Does anybody has this release from 2012 on one CD??
Silva America SILCD 1388
50th Anniversary World Premiere Release.
Performed by the City of Prague Philharmonic Orchestra Conducted by Nic Raine.

I'm too lazy to check, and it's probably not, but my 50th Anniversary Blu-ray came with the Soundtrack. I don't think it's performed by CoPPO though, I think it's really Jarre.

No I have the Tadlow/Silva 2 disc release from 2010.

Is this what the OP is talking about? If so, why is it the 50th Anniversary if it was released in 2010?

On its 50th birthday, LAWRENCE OF ARABIA was released on Blu-Ray, and to coincide with that, Silva Screen Records brought forth a new release of JARRE’s classic score. This release is not very different from that which emerged in 2010 from Tadlow Music (a few cues have been combined), and what hasn’t changed is the absolutely phenomenal recording and performance by the City of Prague Philharmonic Orchestra, conducted by NIC RAINE.

To me personally it felt like a double dip so I abstained from procuring the 2012 release.

and a little search upon request wouldn't hurt either. said tadlow release is shared here (http://forums.ffshrine.org/f92/maurice-jarre-lawrence-arabia-others-flac-2010-a-183397/?highlight=lawrence).