Complex sentence: BBC Sessions 1996--2003 is a compilation album by the post-rock group Mogwai released in 2005, consisting of sessions recorded between 1996 and 2003 for BBC Radio.
Split into simpler sentences: BBC Sessions 1996--2003 is a compilation album by the post-rock group Mogwai, released in 2005. The album is a compilation of sessions recorded between the years of 1996 and 2003 for BBC Radio.