Limestone, Maine ? Phish, the jam band whose open taping policy made it one of the nation’s biggest live acts, is again sidestepping the record industry to cash in on the online music revolution.

Livephish.com offers a rare service: soundboard-quality downloads of performances within two days of the concert. Fans pay $9.95 for MP3s or $12.95 for a computer file format where no sound quality is lost during compression.

In the first four months after launch on New Year’s Eve 2002, the service generated $1 million, said Brad Serling, whose company runs the site as a joint venture with the band.

“It’s beyond our expectations,” Serling said. “It’s been profitable from day one.”

Like the Grateful Dead, Phish has always encouraged fans to record their performances. Likewise, their performances vary widely from night to night, and the band has spawned a subculture of hard-core fans who began trading recordings long before Napster.

Since Livephish’s launch, many of the band’s young, digitally adept fans have proven willing to pay for an improved version of what’s already available at no cost. Sound quality is better, and fans appreciate the convenience of being able to access the equivalent of three CDs of music just 48 hours after the show.

The band Phish performs on the first day of its two-day It festival at the former Loring Air Force Base in Limestone, Maine.

During an end-of-tour festival last weekend that drew an estimated 70,000 fans to the remote town of Limestone, a long line of concertgoers snaked outside a white tent called the House of Live Phish.

Fans used Apple iMacs to make their own free CDs from a menu of three or four songs performed at each of the band’s concert stops this year.

Some burned their CDs, then jumped right back in line. And fans offered rave reviews of the Livephish service.

“To release it two days later in soundboard quality is the ultimate treat for a fan,” said Brian O’Neal, 28, of Nashua, N.H. “I think that could be the greatest thing a jam band ever did.”

Eighty percent of concert sales at Livephish.com come within a week of the show, according to Serling.

Debbie Serling, left, helps Megan Steeves burn a CD of music at the House