caver99 wrote:i've just made my vga to scart lead today and so far on a samsung 42" the picture rolls on the bbc amiga and atari st core but on my 50" lg the amiga and st cores are roark solid but the bbc flickers and i can't get the c64 to show a picture at all
not sure if it's my cable or something else
I think your cable is OK, otherwise there won't be a picture on the 50" LG. Try different TV standards (PAL/NTSC), in the case of C64 and Amiga core it is switchable from the menu (Amiga needs a reset after that to apply the change), in case of the Atari ST core the tos.img file has to be replaced on SD card with the other versoin (i.e. UK[PAL]<->US[NTSC]).
Yes, as I wrote earlier, in case of different cores the result is depending mainly on the screen's properties.
My Samsung LE40B650 LCD displays almost all cores perfectly over SCART and YPbPr. Some are badly centered, and some are distorted. My mother's Panasonic TX-28CK1P and my old Philips CM8833 is even better. Try the PC Engine core on your TV set, I'm curious if it will work or not!