H4 Ultra-Stereo is on the 1999 DVD and the missing sound element is @ ~ 2:41. Overall,the 1999 soundtrack is better and unless someone needed credit (and thus $), I'm not sure why this was mucked with. Check out the beeping shortly afterwards too (you'll know it when you hear it).

In regards to Halloween, unless people need PCM (vs AC3) these are the questions...

Was H5 remixed/remastered for home video?
Does the remix/remaster sound bad or is the remix/remaster missing sound elements? Can anyone answer these questions???
http://www.dvdcompare.net/comparisons/film.php?fid=940

Various sites indicate H6 was released in Ultra-Stereo for home video, so which releases have it? The 'Echo Bridge' DVD and Blu-Ray releases *might* contain the Ultra-Stereo.
http://www.dvdcompare.net/comparisons/film.php?fid=1107
http://www.dvdcompare.net/comparisons/film.php?fid=15713