Originally Posted by zbinks
Correct me if I'm wrong, but laserdiscs with either analog audio and/or uncompressed PCM digital audio may also be at a big advantage in the audio department over their DVD counterparts where analog audio wasn't possible and digital audio was more likely to be encoded as lossy DTS or Dolby Digital.
Nope, that's quite correct. PCM sound on LD is fantastic. Basically, it's CD-quality (like you mention, DTS and Dolby Digital are compressed on DVD).
Of course, like everything else, Blu-Ray has rendered the argument moot as the audio quality is top-notch on those discs.