Australian tech startup Sharetapes dazzled South by Southwest’s interactive session last week by presenting a new take on mixtapes. Using a physical cassette equipped with NFC (Near Field Communication) chips and QR codes, the company’s unique invention allows the sharing of playlists compiled on Spotify, YouTube, 8tracks, SoundCloud and other digital platforms by embedding code on a cassette that when tapped on a digital device (including smartphones) or scanned allows the sharing of music. Sharetapes took top honors in Mashable/NowThisNews’s Best 6-Second Pitch at SXSW. The startup will now get a meeting with a partner at Lerer Ventures this month. Here’s hoping their meeting goes well and that their game changer doesn’t draw scrutiny from the litigious Recording Industry Association of America.