With help an online video rip which was then divided into it's separate tracks has been constructed. You can get the complete (okay quality OST) here: https://mega.co.nz/#!bx4WABjJ!ChsZf3...ldYonzGkXMWoTw
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Title - (Oblivion Island Haruka and the Magic Mirror) - ホッタラケの島 〜遥と魔法の鏡〜 Hottarake No Shima -Haruka To Maho No Kagami
It's been I think 5 years? I can't find the OST anywhere. I've exhausted google searches in both English and Japanese.
If anyone has this please, PLEASE upload it.

Product ID - UPCH-1749
ASIN: B002GQ74S2
EAN: 4988005578419
Album BGM Artist - Tadashi Ueda & Spitz

Link to sample tracks ????????????????????? 1??880??50??????????? (http://www.zonejp.com/ablum.php?id=12630#)
Cheapest place to buy - http://www.cdbanq.com/Animation-OST--Hottarake-No-Shima-Haruka-To-Maho-No-Kagami-Japan-CD-UPCH-1749_p_8082.html#sthash.oOPR1QpF.Ki5JiPUX.dpbs
Or Alt - Amazon.jp http://www.amazon.co.jp/%E3%83%9B%E3%83%83%E3%82%BF%E3%83%A9%E3%82%B1%E3%8 1%AE%E5%B3%B6~%E9%81%A5%E3%81%A8%E9%AD%94%E6%B3%95 %E3%81%AE%E9%8F%A1~%E3%82%AA%E3%83%AA%E3%82%B8%E3% 83%8A%E3%83%AB%E3%83%BB%E3%82%B5%E3%82%A6%E3%83%B3 %E3%83%89%E3%83%88%E3%83%A9%E3%83%83%E3%82%AF-%E4%B8%8A%E7%94%B0%E7%A6%8E/dp/B002GQ74S2

I really doubt anyone will be able to get this. I tried pretty hard myself. The only way to do it is if someone rich, (not being me as I can't even afford next months rent -_-)
buys the CD from Japan with it's ridiculous shipping fee, and then graciously posts it

FYI if you haven't seen the movie here's a trailer ?????????? - YouTube (http://www.youtube.com/watch?v=ApF0gc1F0AM)

It's been 4 years!!! not 5!
Other than that, sorry, I don't have the OST, and there are no rips of it on the web.

Well, thanks anyway I suppose. I'll just keep my fingers crossed and hope someone on that side of the planet reads my plea.

Well looks like the whole album has been uploaded to nicovideo: 【アニメ音楽】ホッタラケの島～遥と魔法の鏡～　全曲集 (http://www.nicovideo.jp/watch/sm11680181)

So you can listen to it online by streaming, or it's also possible to rip the videos from nico to a computer.

That's the best so far, well done :)

And so~ With the help of Sir MiL�.... Oblivion Island Soundtrack (download torrent) - TPB (http://thepiratebay.sx/torrent/8840920)

And then the torrent was removed. Guess TPB isn't as free as it claims to be these days eh?
Should anyone else be wanting the OST which was downloaded and separated via 【アニメ音楽】ホッタラケの島～遥と魔法の鏡～　全曲集
Let me know.

Perhaps they don't accept web rips from youtube/nicovideo, plus I assume it was all in a single track (since it was ripped from a single video file from nico webstite), so it must have looked suspicious to them or something. But then again, they accept crappy video camera rips of movies that just came out, so I don't know...

Either way nothing is stopping you from uploading it to some DDL host and posting here. Quality is not the greatest but it should do for anyone who's interested and would like to check out full soundtrack.

It sounded pretty good to me actually. But yea that would be best https://mega.co.nz/#!bx4WABjJ!ChsZf3kspGaZiePcOq-coyeiMk4NMldYonzGkXMWoTw