Digital copies are typically offered with a good deal of blu-ray combo packs these days, and seem to consist primarily of an insert and code to be used for ULTRAVIOLET viewing on a portable device. I buy a good deal of blu-rays, but have no use for this "bonus" inclusion -- what are people similarly situated doing with them? I read one thread where they can be passed along through some part of the site blu-ray.com, but I didn't see anywhere that there was a marketplace on that site -- I'm not an official member, so is that the key? Other ideas? -- I've got a stack of inserts about 1.5 inches tall....