Complex sentence: In March 2012, Blues Traveler released a double-disk compilation entitled "25" on Hip-O Records; the album commemorates the band's silver anniversary and includes their hit singles, new covers, and previously unreleased b-side material.
Split into simpler sentences: In March 2012, Blues Traveler released a double disk album entitled "25" off of Hip-O Records. The album commemorates the band's 25 year anniversary includes the band's greatest hits, new covers, unreleased b-side material.