Audio recording

A tape recording is the content on a tape that is inside of a tape recorder.

During Day 1, Keith Palmer secretly captures a recording of Carl Webb admitting that Keith was set up in George Ferragamo's murder. Sherry Palmer wanted the recording to be destroyed, and she did destroy a fake version of the conversation, but David Palmer kept the real recording and gave it to the District Attorney, proving Keith's innocence.

During Day 5, Evelyn Martin gets a recording of a conversation between President Charles Logan and Christopher Henderson. Jack Bauer and Wayne Palmer retrieve the recording from a bank, and since then the recording has changed hands multiple times, from Jack to James Heller to Masters (one of Heller's guards) back to Jack, who gives it to Henderson after he threatens to kill Audrey Raines. Henderson then handed it off to the copilot of Flight 520, Scott Evans, but Jack hijacked his plane and forced Evans to give him the recording. After he arrived back at CTU, he gave the recording to Chloe O'Brian, who took it to clean it up and has it now. However, just before 4:00 AM, Miles Papazian, secretly working for Logan, takes a black device and puts it next to the recording, and it flashes. The effects of this device on the recording are unknown as of 4:00 AM.