After Han says, "Chewie, jam its transmissions" a radio frequency type sound effect is heard when Chewie flips the switches.

Mono Sound Mix:

Dolby Stereo Mix:

A different sound effect is heard when the Falcon is caught in the tractor beam.

Mono Sound Mix:

Dolby Stereo Mix:

C-3PO's tractor beam line is heard. This line was originally only present in the mono sound mix. It was added to the home video mix when it was digitally remastered in 1985. When a new sound mix was created for the THX release in 1993, this line was inexplicably left out. It did return once again for the Special Edition.

"The tractor beam is coupled to the main reactor in seven locations. A power loss at one of the terminals will allow the ship to leave."

Mono Sound Mix:

Dolby Stereo Mix:

The comlink communication to Tarkin is a different voice. An additional line is also present.

"Governor Tarkin? We have an emergency alert in detention block AA-23."

Instead of:

"We have an emergency alert in detention block AA-23."

Mono Sound Mix:

Dolby Stereo Mix:

When Chewie beats on the trash compactor door, a knocking sound is heard.

A new, metallic sounding knock is heard in the Special Edition and 2004 DVD.

Mono Sound Mix:



2004 DVD:

Dolby Stereo Mix:

When Luke is trying to contact C-3PO from the trash compactor, some of C-3PO's lines are different takes.

"What? Use the comlink? Oh my, I forgot, I turned it off."

Mono Sound Mix:

Dolby Stereo Mix:

The hard, repeating echo in the chasm is not heard. "I think we took a wrong turn... think we took a wrong turn..." etc.

Mono Sound Mix:

Dolby Stereo Mix:

When Princess Leia fires the blaster in the chasm there is a distinct gunshot sound. Usually referred to as the ".44 magnum," this sound also appears in the Special Edition, but not the 2004 DVD.

Mono Sound Mix:

Dolby Stereo Mix:

"Close the blast doors!" is heard. This line was originally only present in the mono sound mix. It did not appear on any home video release until the 1997 Special Edition.

Mono Sound Mix:

Dolby Stereo Mix:

More sound effects are heard as Luke charges up the gun turret on the Falcon.

Mono Sound Mix:

Dolby Stereo Mix: