Photo: Mike HoughRandy Bachman has been making a thunderous noise again with his old Bachman-Turner Overdrive band mate Fred Turner.  Performing as Bachman & Turner, with musicians who have backed Randy for years, the duo released a self-titled studio album of new material in 2010, followed by the two-CD concert document, Live at the Roseland Ballroom, NYC, released last May.  Now, companion live DVD and Blu-ray discs have hit stores.

In a recent interview, Bachman revealed to ABC News Radio that the cameras caught the band at a particularly opportune time.

"[We'd] been on the road, and once you're on the road and you work everything out, you have this nice greased machine," he explained.  "It's all oiled and well-going."

The September 2010 performance captured for the Live at the Roseland Ballroom video was recorded in 3D and surround sound, initially for a PBS special that aired recently as part of the network's Front Row Center series.  The discs feature an expanded version of the show, with Bachman & Turner playing BTO classics like "Takin' Care of Business," "You Ain't Seen Nothing Yet" and "Let It Ride," as well as new tunes and vintage album cuts.  In addition, there's an abbreviated version of "American Woman," the chart-topping 1970 hit by Randy's famous pre-BTO group, The Guess Who.  Plus, longtime Late Show with David Letterman bandleader Paul Shaffer, an old friend of Bachman's, appears during the concert's finale.

Asked what some of his favorite moments from the concert are, Randy said, "Fred singing 'American Woman' -- we're talking a big…army tank singing the song.  [Guess Who frontman] Burton Cummings sang it heavy but Fred doing it is, like, twice as heavy."

Bachman added, "'Takin' Care of Business' is always a highlight.  No matter how I start that song, if the string's broken or I start it in the wrong key or whatever, it doesn't matter.  It's just like the ultimate gift that keeps on giving."

The singer/guitarist also noted that it was heartening to see fans reacting strongly to some of the lesser known BTO songs they played.

"To have Fred start 'Not Fragile,' which is a little non-descript…bass thing, [and] have everybody's hands going in the air and they start singing with us, then you know they're really fans," Bachman gushed.

In general, Randy says Bachman & Turner are an extremely powerful musical force.  He explains that with Fred playing five-string bass and Mick Dalla-Vee on eight-string bass, "our bottom end is massive, tight…It's really good.  We're better than BTO ever was." (AUDIO IS EXCLUSIVE)

Bachman & Turner have a handful of upcoming U.S. concerts in July and September.  The rockers also will be making a cameo in the upcoming Will Ferrell-Zach Galifianakis movie The Campaign, which is scheduled to hit theaters in August.

Copyright 2012 ABC News Radio