Sorry for this newb question, but I'm a little confused over hard drive prices. There seems to be huge price difference between them and was hoping someone could explain why. For example from TigerDirect there are two WD 2TB drives: Western Digital WD20EARS Caviar Green Hard Drive - 2TB...

Despite optical media's market dominance, it looks like Blu-Ray Disc prices will not go down any time soon. "There's not enough market [volume] to lower the price," Andy Parsons, chairman of the Blu-ray Disc Association, said at the DisplaySearch/NPD HDTV conference in Los Angeles.