Best Buy is expanding its used videogame trade-in program to “close to 600” stores nationwide in the U.S. this week, and more stores will “soon follow,” it said Thursday. GameStop, by far the U.S. market share leader in used games, didn’t respond right away to a request for comment about Best Buy’s move or Target’s announcement on Wednesday that its new Electronics Trade-In service will allow customers to get credit toward any Target in-store purchase by turning in their new or used videogames, in addition to mobile phones and iPods.

DivX reached a tentative settlement of a shareholder suit, clearing one hurdle to its proposed $323 million sale to Sonic Solutions, Sonic said Thursday in documents filed with the SEC. The suit, filed by the Shareholder Foundation in California Superior Court, San Diego, accused DivX’s board of breaching its fiduciary duty in trying to sell the company at an “unfair price.” The shareholder group filed a motion Aug. 20 seeking a preliminary injunction blocking the sale and a hearing was scheduled for Sept. 3, Sonic said. Terms of the proposed settlement weren’t released. There was no comment from DivX or Shareholder Foundation officials.

Marvell’s Armada application processors will be used in “a new gaming platform” that “a major customer” is “preparing to launch,” CEO Sehat Sutardja said on a recent earnings call. But he didn’t specify the company or platform. Marvell won’t comment on “future customer products prior to the official launch,” a spokesman said.

Panasonic, CBS Sports and the United States Tennis Association said Wednesday they will produce 3D versions of all CBS broadcasts of U.S. Open matches on Labor Day weekend and the next, finals weekend. The matches will be shown on n3D, DirecTV channel 103, and in 3D viewing galleries at the National Tennis Center in Flushing, Queens. Panasonic and DirecTV also will provide the U.S. Open semifinal and final matches live in 3D to hundreds of TV retail locations across the country as part of National 3D Demo Days (CED Aug 18 p6), Sept. 10-12, organized by the Consumer Electronics Association.

Saying it might have reached the “limit of [energy] consumption reductions it can realistically achieve” without affecting “consumer experience,” AT&T proposed two changes to the Energy Star set-top box specification the telco said would help get service provider participation. The EPA is revising the set-top box specification and has put out a draft with changes to the rules for service providers. Only four providers, including AT&T and DirecTV, have participated in the Energy Star program for set-top boxes since its debut in 2008.

Chimei Innolux is stepping up its legal battle with Sony, accusing the CE manufacturer of “widespread infringement” of display-related patents. The infringement extends through Sony’s Bravia TV line and beyond to its PlayStation 3 videogames console, Chi Mei said in a complaint in U.S. District Court in Wilmington, Del. Chimei said it also lodged a complaint with the International Trade Commission seeking to bar importation to the U.S. of Sony products infringing its patents, the company said. Sony officials weren’t available to comment. Chimei filed a separate case against Sony in U.S. District Court, Fayetteville, Ark., alleging that its LCD TVs, digital cameras and digital photo frames infringe another set of patents.

Bang and Olufsen’s (B&O) retail business will “stabilize” in the 2010-2011 fiscal year, ending two years of store closings as it moves to open new locations, CEO Kalle Hvidt Nielsen said in a conference call.

The EPA defended its decision to require certification bodies for the Energy Star program to “maintain a substantial North American presence,” as it released final rules for recognition of such bodies with minor changes from the final draft. The new rules are part of the agency’s efforts to strengthen Energy Star product qualification and verification procedures. It decided to fast-track the work after a GAO investigation found that Energy Star was prone to fraud and abuse.

All of the “key metrics” for Barnes & Noble’s widening digital business “are well ahead of plan,” CEO William Lynch said in an earnings call. “The results of our digital investments to date embolden us further,” he said, saying: “In less than 12 months, we believe we have already captured a larger share of the digital book market in the U.S. than our 17 percent share of physical books.” But shares in the company fell after it reported a $62.5 million loss for Q1 ended July 31 and cut its fiscal year earnings per share forecast by 25 cents. Shares closed down 2.27 percent Tuesday, at $14.66.

Dell’s e-waste disposition policy “exceeds the requirements” of the Basel Convention, the company said Monday in its fiscal 2010 corporate responsibility report. The company expanded the definition of electronic waste to cover all computer nonworking parts or devices, “irrespective of material composition,” and required that they be tested and certified as “working” before being exported, it said. The last change was aimed at preventing the “unauthorized dumping of electronic waste in developing counties,” Dell said. During the year, the company became the first major computer maker to “officially” ban exports of nonworking electronics to developing countries, it said.