London (Dm): They were once the staple of a burgeoning relationship - a cassette that contains mixes agonised over for days. Now, Apple could be set to bring them back. The tech giant has been granted a patent for a digital version of the mixtape. It reveals that the new digital version could also include video and pictures. Users would be able to select their own artwork, and even choose to hide the names of songs until each one begins to play - just like on an unmarked cassette.