Washington ? Major-league ballparks are being wired for instant replay, and commissioner Bud Selig said Thursday his “confidence is growing” that the technology to assist umpires will be ready soon.

“I want to make sure that if and when we do it, it’s really good, it’s perfect,” Selig said at the conclusion of a two-day owners’ meeting. “It’ll be very limited. I want to make sure, and I’m not quite certain yet. But we should have answers very shortly.”

Selig said he has visited the so-called “war room” in New York where officials would review video feeds of disputed home runs. The NHL has a similar setup in Toronto.

“We’ve spent a lot of time doing a lot of wiring of ballparks, doing a lot of checking,” Selig said. “Let’s just say my confidence is growing.”

Replays would be used only to determine whether a ball leaving the field is fair or foul, or whether it actually went over the fence. It would not be used on close plays on the bases or balls and strikes.