Yes, that’s what “AC3” denotes. The DVD also had 5.1, but only at 480p resolution.
Support the official release by watching on Max. If you desire a high-quality local file, consider purchasing the digital HD version from Amazon or Vudu (though these are often not true WEB-DLs and may have lower bitrates). Part 6: Frequently Asked Questions Q1: Is Scooby-Doo! Haunted Holidays available on Blu-ray? No. The special has only been released on DVD (in SD) and via streaming in HD. The MAX WEB-DL is the highest quality available. Scooby-Doo.Haunted.Holidays.2012.MAX.WEB-DL.108...
(or a similar truncated version).
