To coincide with the arrival of all four Indiana Jones films on Blu-ray on September 18, we are being spoiled with an IMAX rerelease for just one week in the very same month. Explaining just how you convert a 31 year-old movie to something capable of being called IMAX quality, Steven Spielberg told The New York Times, that "the first tier is where you take the DI [digital intermediate] and you enhance the resolution to IMAX resolution. The second tier is that the sound is significantly different. Raiders Of The Lost Ark Heading To Imax- "They take the [audio] stems that we gave them, and they put them through their 12,000 watts of digital surround sound, and it’s a totally uncompressed experience." Sound, as it turns out, is key to Spielberg's IMAX vision: "You kind of feel the sound in your chest, like when the boulder is rolling, chasing Indy through the cave. You really feel the boulder in your stomach, the way you do when a marching band passes b