I understand that aspect ratios are 4:3, when the game runs at 640x448 it puts slight horizontal borders on the screen. Check some of the screenshots for Disgaea at lamespot:
http://www.gamespot.com/ps2/rpg/disg...reenindex.html
(yeah, they are 720x480, but you can PERFECTLY cut off the borders to see that the actual game screen is only 640x448. Just copy them into photoshop or Paintsho pro and do a centered canvas size.)
It's very suspicious cause using 640x448 for graphics is not uncommon at all for ntsc games, and this would also fix that small warping problem - and the lamespot picture captures are the same resolution as well. Just being off by a few pixels like that last shot would perfectly fit this scenario as well, seeing that the game was only forced to stretch by 8 pixels both above and below.
I sent a pm about testing.