Will this be the holiday season of the $299 Blu-ray player? And will such a low price usher in mass acceptance of high-definition video discs? Could be. Here's a leading indicator: Sony says it will have Blu-ray players priced at $399, possibly lower, during the holidays. Already some Blu-ray players are in the $350-to-$400 range, while the competing HD-DVD spec is flirting with $199 and $99 price points.