Way back in the technological dark ages (that'd be the '80s), VHS and Betamax competed to become the format of choice for people watching movies at home. The former eventually won that battle, while everyone who had bought a Betamax player became the proud owner of a very expensive paperweight. Then DVDs came along and replaced tapes altogether.
Now, couch potatoes everywhere face another choice in format: HD DVD or Blu-ray. Both offer discs and players with far superior picture and sound quality. But the companies supporting each (Toshiba, Intel and Microsoft for HD DVD; Sony, Samsung and Pioneer for Blu-ray) show no intention of making their baby compatible with the rival format -- meaning that, yes, one will most likely follow Betamax into the netherworld of eBay antiques.