Hear about Britney Spears' new baby? Definitely. Hear about her new album? Um... Released Nov. 22 without the usual PR blitz, B in the Mix: The Remixes sold only 14,000 copies in its first week, debuting at No. 134 on Billboard's album chart. A rep for Spears' label, Jive, insists the former Queen Bee of Teenage Pop hasn't lost her touch. The disc of clubby remixes ''was scheduled as a limited-edition fan piece,'' she says, adding that Brit's working on a full-length album for 2006. In general, remix albums rarely find a mass audience (R. Kelly's recent remix record, Remix City Volume 1, debuted only at No. 72). But B in the Mixlacks a photo of Britney anywhere on the cover or CD booklet a conspicuously low-profile rollout for an artist whose 1999 debut album has sold more than 10 million copies. ''It doesn't seem like the best way to sell a Britney CD,'' says Carl Mello, senior buyer at New England's Newbury Comics music chain. ''Though it's a good way to milk the catalog for a few extra dollars over the holidays.'' And someone does have another mouth to feed.