Radiohead will not repeat the pay-what-you-like offer used to launch their latest album In Rainbows, singer Thom Yorke has told an interviewer.
The "honesty box" idea was a "one-off response to a particular situation", he said in The Hollywood Reporter.
"It was one of those things where we were in the position of everyone asking us what we were going to do," he said.
"I don't think it would have the same significance now anyway, if we chose to give something away again."
The rock band allowed fans to enter any amount from nothing to £100 to download their seventh album.
"It was a moment in time," Yorke added.
His comments came as Radiohead unveiled a new video to raise awareness of human trafficking.
The band collaborated with MTV's End Exploitation and Trafficking (Exit) campaign to create the video for their song All I Need.
MTV will premiere the video globally at 0600 BST on Thursday.