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Haven't done your test, but what's with the attitude about "fancy dancy" players? Are you coveting an upconverting player for yourself?

progressive, 29.97, 25 fps. 4:3 aspect ratio. test disks. (http://www.megaupload.com/?d=PHYV5OKP)
same progressive test disks, alternate download site. (http://files.filefront.com/progressivezip/;11794350;/fileinfo.html)

interlaced, 29.97, 25 fps. 4:3 aspect ratio. (http://www.megaupload.com/?d=WWFU0LAE)
same interlaced test disks, alternate download site. (http://files.filefront.com/interlacedzip/;11793789;/fileinfo.html)

The Playstation 3 has overscan when playing 4:3 ntsc dvd. So the test pattern is squished as a result and so it can't be accurately used on the PS3.
If you test and think your dvd player is using overscan then I think the test pattern won't be displayed properly and so will give incorrect results.

updated the tests disks september 14, 2008

comparison pictures. no powerdvd though (http://files.filefront.com/comparison+pictureszip/;11803083;/fileinfo.html)