A while I back, I wrote a column for TechHive on ways to rent or buy DVDs without Netflix’s now-dead DVD service. So it’s only fitting to now write the opposite story, about how to declutter the optical media you no longer want. First, we’ll go over some ways to digitize any DVDs or CDs you want to save, using freely available software. We’ll also cover how to sell discs in bulk for a modest profit. This story is adapted from Jared’s Advisorator newsletter. Sign up to get more tech tips every Tuesday. Why digitize?In an age of streaming abundance, you might not think digitizing physical media …