Ashra - Oasis (very rare extended version?)

I've only in the last 12 months discovered Ashra believe it or not, and I'm in love with some of the tracks, particularly Sunrain and Oasis which are amazing IMO.

What's completely puzzling me at the moment is where on earth to get the track on the following video:

Ashra - Oasis - YouTube

It sounds like an extended (perhaps re-made / re-mastered?) version of the original 1979 release on the album Correlations, which interestingly enough is also the track that Youtube's auto-sensing music system has pointed to on the above video. The original's length is 4:43 and the video above is 7:13. To confuse things further, some of the releases on Discogs are around 3:44 in length??

In the comments, someone has put that this is the track off the @shra Vol 2 live in Japan CD. Now I've got the twin pack of this release (cat no MG.ART 204)...

http://www.discogs.com/Ashra-shra-sh...elease/1446802

...and it's definitely not the track on that release, it's about the same length (7:09) but sounds completely different and is obviously a live performance.

I find it hard to believe but could it actually be possible that the single CD release of the @shra Vol 2 (cat no MG.ART 202) actually has this different version of the track on it? Has anyone who's got this single CD version confirm this please? I don't really fancy forking out £19+ just to find it's the same CD I've already got in the double pack.

http://www.discogs.com/Ashra-shra-Vol-2/release/238683

This version must be out there somewhere and I'm determined to find it :)

Sorry, I don't know this version but if you are just discovering Ashra make sure you check out Manuel Göttsching's solo album E2-E4:
manuel göttsching- e2-e4 - YouTube

Thanks, yeah when I first heard E2-E4 my eyes lit up and I thought 'ahh, that's where the Sueno Latino sound came from then'.

As a bit of an update on the thread, I sent a message to someone on Discogs selling the single CD release (MG.ART 202). He replied quickly with an mp3 of the track on his CD, but as expected it's the same as on MG.ART 204, i.e. the live performance, i.e. not the one on the Youtube video.

I'm starting to wonder whether it's a very well done unofficial rework of the track, perhaps by the Youtube video creator, I've emailed but no response. Who knows, If I knew Manuel personally I'd ask him haha, don't know what else to try now.