The thing I hate is American Werewolf in London, Blues Brothers, and Animal House all had alterations on their 5.1 remixes (re-recorded sound effects) on the blu ray releases, yet it was kept extremely quiet. I listened to some portions with the foreign language tracks that replicated the original mono mixes with the exception of the English dialog being overdubbed, and they were so much better that way. American Werewolf had it the worst by having the pitch tuned down slightly as well, which resulted in the actors and music sounding slightly lower than normal.