I've only spot-checked it, however I think the Grease Blu-Ray audio sounds good and I don't observe any of the issues pointed out except some of the foley effects and the backgrounds seemed loud.

Anyone with the Blu-Ray, what exactly are the audio issues and sync problems?

I did notice some additional foley sounds during 'Greased Lightning', however who knows if those sounds originally existed on the 70mm 6-track.

Also, does anyone have the 2002 DVD? This site (possibly mistakenly) indicates the 2002 DVD contains the original (Dolby Stereo) soundtrack in Dolby Surround Sound. http://web.archive.org/web/20050826210209/http://www.dvdfile.com/software/review/dvd-video_5/grease.html

Below are some links for Sha-Na-Na 'Born To Hand Jive' from the Grease. The last one strongly suggests a DVD release has the original soundtrack. Drums kick in after a fight on-screen and then a guy slides toward the camera and the remixed soundtrack has an extra foley effect.

http://www.youtube.com/watch?v=fY5pmzmiDO8 (Remixed soundtrack)
http://www.youtube.com/watch?v=C-Rb_AHBvMQ (Original soundtrack)

Also, I checked out the background singers TServo2049 mentioned (Thank you for the YouTube links!) and I think the background singers were always out of sync. The remixed audio on the TBS broadcast seems very loud, however I don't think anyone knows if the TBS or the uploader changed it (knowingly or unknowingly).

Anyone, please point out specific issues and time(codes) with the Blu-Ray other than it's louder, has extra foley effects, or echo'y'.

As pointed out earlier in the thread, by websites referenced, and by other websites, many think the Grease Blu-Ray audio is of poor quality. See:

Lastly, nothing against crissrudd4554, many others and websites indicate what was quoted and this post was more recent.

crissrudd4554 said:

... Grease has a pretty bad remix as well and the original is not included on any of the DVD/BD releases. ...

...

TServo2049 said:

Another buggered 5.1 remix I forgot to mention: Grease.

When the film was remixed in 5.1 for the 20th anniversary re-release, they completely overhauled the music mixing to sound more "modern." You can read a whole lot more about it here: http://www.hometheaterforum.com/t/287394/a-few-words-about-grease-in-blu-ray

Here's the original mix of "You're the One That I Want" from an old TBS broadcast. And here's the remix. Notice the extra "It's electrifying!", the much louder background vocals and brass, and how during the second verse, the male backup singers are actually