Also

* 321 Studios Inc., a maker of DVD-copying software, shut down its operations after a series of court rulings won by movie studios and video-game makers prevented it from selling its products.

* America Online Inc. has purchased privately held Mailblocks Inc. of Los Altos, Calif., developer of a service designed to block junk e-mail. Terms were not disclosed.

* The pilots’ union at Delta Air Lines Inc. said management’s demands for $1 billion in wage cuts and other concessions “far exceed” the company’s economic situation, and hinted it might have to take “another path” in the talks.

* DaimlerChrysler’s Chrysler recalled 681,000 of its 2002 through 2004 minivans because a power-steering hose can leak and cause a fire.

* Cable television company Charter Communications Inc. said its chief financial officer had resigned to take the same title at Cablevision Systems Corp.

* The Federal Communications Commission said that it would set up a list of Internet domains used by cellphone carriers to help keep unwanted spam messages off consumers’ phones.