Sanding down the scratches on those old LPs

OK, if at first (and perhaps even second) glance, this sounds completely mental, you have to admit that if you read through it all and check his images, this guy makes a plausible case for at least considering sandpaper for scratch removal.......let me know how you get on ;)

http://www.instructables.com/id/Bring-Ruined-Records-Back-to-Life/