If you're too cheap to buy Final Scratch - the fantastically clever using-vinyl-records-to-play-tracks-on-your-laptop machine that Richie Hawtin uses (it is £489), then you'll want to know about Ms Pinky's Interdimensional Wrecked System, which does the same kind of thing without any extra hardware. It's basically some vinyl, some software and some instructions about how to connect it all to your laptop's sound inputs and outputs, all for $99. You can also use it to scratch video, with a real record on a real record player. There seems to be a lot of suspicious black magic in this so-called 'music technology' business.