The first time anyone could put music in their pocket came with the 8-track in the middle 1960s. Yeah, it was a bit bulky, but if you forced it, you could jam a tape into your jeans. Cassettes were much easier to pocket but CDs seemed too sharp and angular for pockets smaller than you’d find in a jacket or coat. But believe it or not, there was a scheme to market records–vinyl records–that could fit those same places. And out of all my study and writing about various music storage formats, I’d never heard of the “Hip Pocket Record.” Yes, a 4-inch record you could slide into the back pocket of your jeans because it was flexible. It was 1967. A number of labels struck a deal with the manufacturer, including the Beatles who issued “Hey Jude” in the new format. Alas the pocket record was dead by 1969, thanks to the rise of the cassette.