Is this Miikka Leinonen single still considered rare?

Yes, as a 2007 CDr single from Alter Ego Digital, it is a specific release within the Electronic genre that may be difficult to find.

What format is the Shadow Hearts release in?

The Miikka Leinonen – Shadow Hearts is available in a CDr Single format.

This specific release was issued in the year 2007.

Name: Miikka Leinonen – Shadow Hearts (CDr, Single)
Brand: Miikka Leinonen

Electronic

What Shadow Hearts by Miikka Leinonen is worth on the used market.

Label · Alter Ego DigitalFormat · CDr, SingleGenre · Electronic

Used

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New / Sealed

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Shadow Hearts by Miikka Leinonen (2007) on CDr, Single. The Discogs marketplace floor is null with 0 copies currently for sale.

Pressing, country, and condition (media + sleeve) move vinyl/CD values the most — first pressings and clean copies command a premium.

Is this Miikka Leinonen single still considered rare?: Yes, as a 2007 CDr single from Alter Ego Digital, it is a specific release within the Electronic genre that may be difficult to find.
What format is the Shadow Hearts release in?: The Miikka Leinonen – Shadow Hearts is available in a CDr Single format.
When was this electronic single originally released?: This specific release was issued in the year 2007.