Originally posted by: Johnny Ringo

As far as the audio tracks, are there major differences between the mono and surround?

They did a great job of remastering the sound, in the dvds, and they restored at least one missing line (Balok, in "The Corbomite Maneuver").

But then they screwed up the bridge sound effects. They mixed in the sound effects that were used for Pike's bridge, (and for the other starships). And they often threw in in sound effects that belonged on other parts of the ship.

The original series had a limited sound effect library, and recycled some of the off-ship sounds. But they took great care to have consistant background sounds for each major room on the ship, as well as consistant sound for the primary equipment.

The 5.1 was made possible by the fact that the "mono" tracks, in those days, were 3-track (speech, music, sound effects). And the music seems to have been mixed from the original multi-track recordings that the mono was mixed-down from.

Off topic, but by the way, you know how the laugh track was too loud in MASH? Comedies put the "laugh track" in the sound effects track. That made it easy for some bozo to decide to make it obnoxious).