I don't think you can adjust the playback speed in the free quicktime player, but if you buy the Quicktime pro upgrade it allows for playbeack speed adjustment.
[quote author=Rich Lee link=board=gensoft;num=1100520137;start=0#3 date=11/30/04 at 23:11:32]ah, thanks bob, thats definitly in the right direction...thanks for the link. wish it worked for a pc.[/quote]
I hope you also read the reply from the guy who wrote , "If you use the Windows version of QuickTime, the Shift key volume trick is the same, but use the Alt key instead of Ctrl for the speed slider."