We've all heard about the vinyl revival, but cassette sales have boomed this year.

According to the Official Charts Company, almost 65,000 music cassettes were sold in the UK in the first six months of 2020, which is double the figure recorded for the same period last year and more than the entire year's sales from 2018.

Andy O'Donoghue joined us for Tech Tuesday to talk about why retro technology appears to be making a comeback, from the Sony Walkman to VHS tapes.