Bootlegs of these sessions revealed that some of the material emerged on later projects, notably The Firm's "Fortune Hunter" and Yes songs "Mind Drive" and "Can You Imagine?". Page joined Yes on stage in 1984 at Westfalenhalle in Dortmund, Germany, playing "I'm Down". In 1982, Page collaborated with director Michael Winner to record the "Death Wish II" soundtrack. This and several subsequent Page recordings, including the "Death Wish III" soundtrack, were recorded and produced at his recording studio, The Sol in Cookham, which he had purchased from Gus Dudgeon in the early 1980s. In 1983, Page appeared with the A.R.M.S. (Action Research for Multiple Sclerosis) charity series of concerts which honoured Small Faces bassist Ronnie Lane, who suffered from the disease. For the first shows at the Royal Albert Hall in London, Page's set consisted of songs from the "Death Wish II" soundtrack (with Steve Winwood on vocals) and an instrumental version of "Stairway to Heaven". A four-city tour of the United States followed, with Paul Rodgers of Bad Company replacing Winwood. During the tour, Page and Rodgers performed "Midnight Moonlight", which would later appear on The Firm's first album. All of the shows featured an on stage jam of "Layla" that reunited Page with Beck and Clapton. According to the book "Hammer of the Gods", it was reportedly around this time that Page told friends that he had just ended seven years of heroin use. On 13 December 1983, Page joined Plant on stage for one encore at the Hammersmith Odeon in London. Page next linked up with Roy Harper for the 1984 album "Whatever Happened to Jugula?" and occasional concerts, performing a predominantly acoustic set at folk festivals under various guises such as the MacGregors and Themselves. Also in 1984, Page recorded with Plant as the Honeydrippers the album "" and with John Paul Jones on the film soundtrack "Scream for Help". Page subsequently collaborated with Rodgers on two albums under the name The Firm. The first album, released in 1985, was the self-titled "The Firm". Popular songs included "Radioactive" and "Satisfaction Guaranteed". The album peaked at number 17 on the "Billboard" pop albums chart and went gold in the US. It was followed by "Mean Business" in 1986. The band toured in support of both albums, but soon split up.