are you sure? got a link showing he set a new world record?
i found this video over at irongame.com in the video's section:
Scot Mendelson - 2005, August 6th, APF California Meet - 415kg/914lb Bench Press, 457.5kg/1008lb Bench Press miss @ 308
Ican't video link it, because it the link on the page goes straight to a wmp application. you will have to go to irongame.com and find the video. It's the first one listed under Scot Mendelson. if you look at it, by the time his spotter takes his hands off the bar, it is already half way lowered to his chest. he never even held the weight at lock out