Blockbuster's been trying all sorts of, um, innovative things to get more foot traffic in its stores, but thanks to a dastardly invention known only as "Netflix," that very task has proven exceptionally difficult. Now, it seems the flagging movie rental company is giving one more far-flung idea a whirl: movies on SD cards. Around six Blockbuster and Hollywood Video stores will soon begin offering titles on SD cards, though the included DRM only allows customers 30 days from the purchase date to view it, and once it's fired up, you've just 48 hours before it vanishes completely. Each rental will cost $1.99, and while we definitely see the benefit of renting something that you don't have to return, we're still skeptical that folks will be more willing to make even one trek for a card when Netflix brings it all to one's mailbox (and PC, etc.) for just $8.99 per month.