International education publisher Glencoe/McGraw-Hill has confirmed it will release iPod-compatible audio and video content to supplement its educational publications.

The iPod extras will encompass its offerings in business education, world languages, maths, language arts, science and social studies.

These resources will be demonstrated by Apple as iPod content during the US National Education Computing Conference in San Diego from 5-7 July 2006.

The Glencoe Media Center, which will host the downloadable MP3 audio and video files, will be fully accessible in the autumn of 2006.

The company already offers supplementary educational material for PDAs and online.

It's not the first educational book publisher to begin to explore the potential of digital audio. Apple sold PowerSchool to education publisher Pearson in May. As part of that deal, Pearson agreed to develop educational content for teachers and students that works with iPods.

In related news, the Guardian today reports that spoken book provider has sold in excess of 300,000 titles in the past 12 months.

Peter Bowron, group managing director at Random House, told the Guardian: "The iPod comes along and suddenly digitally downloaded audio becomes a much bigger market. It is one of the first areas of the digital world that, rather than just talking about it, we are actually earning money from it."

Bowron expects that at some future point books will be commissioned for how they are likely to sound as spoken word transmissions.