NIGHTWISH's 2005 CD collection, "Highest Hopes - The Best Of Nightwish", has been certified double platinum in the band's native Finland for sales in excess of 60,000 copies.The album, which was released in two different formats (the normal version, and limited edition, featuring a bonus disc containing three video clips filmed at the Mera Luna Festival in Hildesheim, Germany in 2003: "She Is My Sin", "Dead to the World" and "Kinslayer"), features a cover of PINK FLOYD's "High Hopes" and a new recording of the song "Sleeping Sun", for which the band shot a video in Prague, Czech Republic. The clip was directed by Jörn Heitmann, who has previously worked with such artists as RAMMSTEIN ("Keine Lust", "Amerika") and THE RASMUS ("No Fear"). As previously reported, Spinefarm Records has set a June 7, 2006 release date for the upcoming "End of an Era" CD/DVD release from NIGHTWISH. "End of an Era" will contain footage of NIGHTWISH's final concert with singer Tarja Turunen, which took place on October 21 at the Hartwall arena in Helsinki, Finland. NIGHTWISH fired Turunen via an "open letter," which was given to the singer immediately following the Helsinki show. The group are currently seeking a replacement vocalist before entering the studio in September 2006 to begin recording the follow-up to 2004's "Once", tentatively due in mid-2007.