The most popular approach is based on AAC and Apple's QuickTime. Playing these enhanced podcasts on a computer requires Apple's Quicktime Player or iTunes software. The only portable devices capable of playing these enhanced podcasts are iPods and iPhones. This format is becoming popular in all the world, e.g. in Brazil, where one of the most famous podcasts is the Guanacast, of the brazilian teacher Gustavo Guanabara, using the AAC format since 2007-09-07.

Authoring is possible on a Macintosh computer using applications such as Apple's GarageBand (part of their iLife suite), Podcaster, ProfCast and Apple's Chapter Tool.

The technical details of the mp4 format can be found in the references sections.

The MPEG-4 mp4 acc format mirrors the approaches that can be used for enhanced podcasts:

The wmv scripted approach is less functional and more difficult to implement. Other Windows solutions exist; these too often require several steps. For example, the online Webpoderator uses Microsoft Producer for PowerPoint 2003 files, which are uploaded to create Enhanced podcast http://www.celt.sunysb.edu/webpoderator/ jrlearnsmedia.com has a command line tool similar to Apple's chaptertool for creating Enhanced podcasts as well http://jrlearnsmedia.com/blog/archive/2007/07/29/enhanced-podcasting-on-windows.aspx The easy-to-use Profcast application for Macintosh is now available in a Windows compatible version http://www.profcast.com/windows/index.php

An alternative approach is to use ID3v2 Chapters. This is a relatively new standard and is not widely supported as yet. However an authoring tool is available and a media player for Pocket PCs and Windows Mobile Smartphones.

SMIL is a W3C recommended XML markup language that can be used to create enhanced podcasts.

Ogg has the ability to handle media specific metadata, which includes chapters and subtitles.[citation needed]

Matroska has the ability to handle multiple stream types including subtitles and chapter information.

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