The Hitchhiker's Guide to the Galaxy States and Canada with Hannibal Records and Simon and Schuster were later negotiated by Douglas Adams and his agent, Ed Victor, after gaining full rights to the recordings from Original Records, which went bankrupt. There have been three audiobook recordings of the novel. The first was an abridged edition (), recorded in the mid-1980s for the EMI label Music For Pleasure by Stephen Moore, best known for playing the voice of Marvin the Paranoid Android in the radio series and in the TV series. In 1990, Adams himself recorded an unabridged edition for Dove Audiobooks (), later re-released by New
Phrases from The Hitchhiker's Guide to the Galaxy reference to Hitchhikers. The number 47 appears often throughout the "Star Trek" franchise. When producer Rick Berman was asked about the unusual frequency of the number, he stated, "47 is 42, corrected for inflation." In the series, "Don't Panic" is a phrase on the cover of "The Hitchhiker's Guide to the Galaxy". The novel explains that this was partly because the device "looked insanely complicated" to operate, and partly to keep intergalactic travellers from panicking. "It is said that despite its many glaring (and occasionally fatal) inaccuracies, the "Hitchhiker's Guide to the Galaxy" itself has outsold the "Encyclopedia Galactica" because