21.   Max clicked on an audio file enabling him to hear the voice of Raoul Glaber.

22.   Most new computers that have CD-ROM drives have a sound card, which allows the computer to send and receive audio files.

23.   One advantage, Hughes said, is that people need not fear leaving a favorite CD at home because all audio files can be shared by the devices.

24.   On the up side of the parabola, the debut issue highlights the effectiveness of multimedia with an audio file of Irish poet Seamus Heaney reading his work.

25.   RealAudio converts music into audio files that can be downloaded, sent by e-mail or played on the Web.

26.   SecureASFdd copy, as it is known, is said to prevent users from playing unauthorized audio files.

27.   Slate is also taking a leap into the world of downloadable digital audio files via a deal with Audible.com.

28.   Simple audio files seem to be an easy way to pop off a quick message to a friend.

29.   Some sites, like Timages.com, use Shockwave animation files to disseminate virtual yoga classes, while others like BeyondBody.com make additional information available via downloadable audio files.

30.   Ted Mandell of South Bend, Ind., has brought together descriptions of fantastic finishes, several with original broadcast audio files.