I bought Dumb and Dumber, brand new, and the sound from only the front right, surround right, and center speakers has an annoying buzz, while the other 2 speakers play normal audio.

what's up with that?

Is it an AC-3 disc with your player only capable of analog playback?

well it is a dumb laserdisc..

No. It says "this disc has both analog and digital soundtracks, and can play on all currently available laserdisc players."

Do you have your LD player hooked up with both digital and analog? I would try changing the audio track to see if it's a problem with just 1 or the other.

not sure how to do it, even if i could

It's not too difficult, you'd need to connect an optical digital cable from the player to your receiver and a cheap pair of stereo (red, white) rca cables from the LD player to a different input on your receiver. Then use the LD remote to change tracks (button usually labeled "audio") and switch between the 2 inputs with your receiver.

My player doesnt have a fiber optic port. But thanks, Ill remember this if my problem persists on my next player.

yup, E.T.'s sound just works in the beginning and the rest is non-existant. just have to wait for my other player to arrive