Biffy Clyro sold out their limited edition cassettes within minutes of the going on sale - proving that the retro format is making its strongest comeback yet.
The Ayrshire lads wanted to celebrate the ninth anniversary of Opposites and manufactured 500 of the cassettes for fans.
They wrote on their website: "To celebrate 9 years since the release of Opposites, we are releasing a limited edition cassette of the double album.
