thanks for the replies.
I will explain a little further for those interested. What I have is a panasonic plasma display from japan. Using s-video output into an Iscan pro line-doubler, NTSC discs appear fine through a multi-region pioneer 717. However, PAL discs do not look as good and, although watchable, appear grainy and lack the richness and depth of the NTSC discs.
It appears that the display must be NTSC only. I have tried hooking up my PS2 with s-video, again through the Iscan and played a game that allowed a 60hz option. The results were crisp, clear and stable as the NTSC DVDs. The same game at 50hz again showed up the apparent PAL incompatibility.
Therefore, unable to get a DVD player in the UK to output a 60hz signal ( as far as I know), the possibility of getting a US NTSC dvd player that output a 60hs PAL signal maybe the answer.phew.
The plasma is not a standard unit and only has an RGB PC 15hdd input that I can use, a tuner input and serial input.
your thoughts again please! thanks