I've heard about the inner-ring markings in an unwritable section of some movies, and I have a few questions about it. Does this affect only HD DVDs and Blu-Rays, or does it also affect DVDs? Is there anyway to copy such discs with this protection, and have them playable in any blu-ray player? I ask this because I've heard that if you keep the copy protection in the ISO file, and burn the protected image to BD-R mediums, not all blu-ray players will play the disc because it lacks the extra bit of information in the ring. Similarly, if you burn the image unprotected, not all blu-ray players will play the disc. If any of this information is incorrect, please correct me. Thank you for your time.