As part of the Final Fantasy’s 25th anniversary campaign, Square Enix arranged for several Japanese musicians to put together 25 remixes of various Final Fantasy songs for an album.
The album, called Final Fantasy Tribute ~Thanks~ was officially released in Japan as of December 5, 2012. The cost for the album is 3,000 yen (or approximately $36 US).
Here’s what the album cover looks like:
Also, check out the following video which features song previews from the album.