Verdana and Arial are TrueType fonts with extensive manual hinting for monochrome bitmap display.

[This thread should probably be moved to the Build forum.]

I think it has something do with the fact that Verdana has super-hinting. But I'll gladly be wrong to here an educated answer.

Perhaps this link? http://www.microsoft.com/typography/fonts/font.aspx?FID=1&FNAME=Verdana