ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades "Esoteric" countries and their wiring practices?

The Sony list has some interesting things.
What kind of thing is the Korea plug, Euro plug with 4.8mm pins? Do they use NEMA 1-15/round pin combo outlets?
And what is the D type plug? How can it be polarized with 2 equally sized prongs? It seems to be used in China.
Interesting they don't show any dimensions of the 13A plug!
What is the DRIT TV system??????? I only know NTSC, PAL and SECAM.