Here we go again... another format war!

"Sony Corp said it will launch four models of new Blu-ray high-definition optical disc recorders in November in Japan, as its format battle with the HD DVD camp heats up."

Talk about not learning from history...

Stereo vs. Quad

Cassette vs. Cartridge

VHS vs. Betamax

MiniDisc vs. DCC

SACD vs. DVD Audio

+R +RW vs. -R -RW

PAL vs. SECAM vs. NTSC

the list goes on...