The FIVE CDs were freely given to early purchasers well before the release of the game: http://harukaze-soft.com/nora/tokuten/soukiyoyaku.html
EDIT: Found the image containing ALL of the five CDs from an auction site:

The following is the poster regarding to this:
The following is a sample of the redeem coupons:
The following are samples of some of the CDs' labels:
Thanks :D
EDIT: Found the image containing ALL of the five CDs from an auction site:
![10125d1457440958-[req]-[harukaze]-%E3%83%8E%E3%83%A9%E3%81%A8%E7%9A%87%E5%A5%B3%E3%81%A8%E9%87%8E%E8%89%AF%E7%8C%AB%E3%83%8F%E3%83%BC%E3%83%88-%E6%97%A9%E6%9C%9F%E4%BA%88%E7%B4%84%E7%89%B9%E5%85%B8cd-five-total-oy1rcft-img600x354-1456539261wme6fr24398.jpg](https://p.anime-sharing.com/proxy.php?image=http%3A%2F%2Fwww.anime-sharing.com%2Fforum%2Fattachments%2Fmusic-request-44%2F10125d1457440958-%5Breq%5D-%5Bharukaze%5D-%25E3%2583%258E%25E3%2583%25A9%25E3%2581%25A8%25E7%259A%2587%25E5%25A5%25B3%25E3%2581%25A8%25E9%2587%258E%25E8%2589%25AF%25E7%258C%25AB%25E3%2583%258F%25E3%2583%25BC%25E3%2583%2588-%25E6%2597%25A9%25E6%259C%259F%25E4%25BA%2588%25E7%25B4%2584%25E7%2589%25B9%25E5%2585%25B8cd-five-total-oy1rcft-img600x354-1456539261wme6fr24398.jpg&hash=3c9a1538f907b5ece9424979ee363b3f)

The following is the poster regarding to this:

The following is a sample of the redeem coupons:

The following are samples of some of the CDs' labels:



Thanks :D
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