Task: Question Answering
Input (English): Passage: After the band released two slow-paced albums in a row, R.E.M.'s 1994 album Monster was, as Buck said, "a 'rock' record, with the rock in quotation marks." In contrast to the sound of its predecessors, the music of Monster consisted of distorted guitar tones, minimal overdubs, and touches of 1970s glam rock. Like Out of Time, Monster topped the charts in both the US and UK. The record sold about nine million copies worldwide. The singles "What's the Frequency, Kenneth?" and "Bang and Blame" were the band's last American Top 40 hits, although all the singles from Monster reached the Top 30 on the British charts. Warner Bros. assembled the music videos from the album as well as those from Automatic for the People for release as Parallel in 1995.In January 1995, R.E.M. set out on its first tour in six years. The tour was a huge commercial success, but the period was difficult for the group. On March 1, Berry collapsed on stage during a performance in Lausanne, Switzerland, having suffered a brain aneurysm. He had surgery immediately and recovered fully within a month. Berry's aneurysm was only the beginning of a series of health problems that plagued the Monster tour. Mills had to undergo abdominal surgery to remove an intestinal adhesion in July; a month later, Stipe had to have an emergency surgery to repair a hernia. Despite all the problems, the group had recorded the bulk of a new album while on the road. The band brought along eight-track recorders to capture its shows, and used the recordings as the base elements for the album. The final three performances of the tour were filmed at the Omni Coliseum in Atlanta, Georgia and released in home video form as Road Movie.R.E.M. re-signed with Warner Bros. Records in 1996 for a reported $80 million (a figure the band constantly asserted originated with the media), rumored to be the largest recording contract in history at that point. The group's 1996 album New Adventures in Hi-Fi debuted at number two in the US and number one in the UK. The five million copies of the album sold were a reversal of the group's commercial fortunes of the previous five years. Time writer Christopher John Farley argued that the lesser sales of the album were due to the declining commercial power of alternative rock as a whole. That same year, R.E.M. parted ways with manager Jefferson Holt, allegedly due to sexual harassment charges levied against him by a member of the band's home office in Athens. The group's lawyer Bertis Downs assumed managerial duties. 
Question: What group used the eight-track recordings as the base elements for the album?
Output (English): R.E.M.