Which of the following was Proof's main release medium?
Vinyl records
Cassette tapes
CDs
All of the above
Answer
Proof's main release medium was all of the above. Their music was released in both physical and digital formats. Their albums were released on vinyl, cassette tape, CD, and digital download. Their singles were released on vinyl, cassette tape, and digital download.
Rhyme and Reason: Testing Your Knowledge on Proof (1973-2006)