Robert Plant has discovered some previously unreleased Led Zeppelin recordings, he revealed in an interview with BBC Radio 6. When the BBC Radio 6 DJs asked him about the “hidden gems” on the upcoming remasters of the Led Zeppelin catalog, Plant shared the news about his exciting new finds. “I found some quarter-inch spools recently,” he said. “I had a meeting with Jimmy [Page] and we baked ‘em up and listened to ‘em. And there’s some very, very interesting bits and pieces that probably will turn up on these things.”

Among the uncovered recordings include some recordings featuring Led Zeppelin bassist and keyboardist John Paul Jones on lead vocals. “So far, he’s going to give me two cars and a greenhouse not to get ‘em on the album,” Plant said.

Last year, Page announced that he was working on remastering the band’s catalog. “The catalog was last remastered 20 years ago,” Page told Rolling Stone. “That’s a long time. Everything is being transferred from analog to a higher-resolution digital format. That’s one of the problems with the Zeppelin stuff. It sounds ridiculous on MP3. You can’t hear what’s there properly.” There’s currently no release date set for the project.