About File Types

AUDIO

FLAC

Highest quality, but takes up the most storage space (not ideal for mobile devices).

MP3 & M4A (AUDIO-ONLY FILE)

Plays on all music players.

M4B (MOSTLY SPOKEN WORD PROGRAMS)

Best for iPad, iPhone, iPod, and iTunes users, as well as Android users with Akimbo or similar app. Apple Devices: To download to an iPad, iPhone, or iPod, please download the file to a computer and transfer via a USB connection.

PDF (EBOOK/DOCUMENT FILE)

Printable document that may contain supplemental information like track listings, table of contents. study guide. or worksheets, depending on the program.

ZIP (ALL MP3 FILES IN ONE ZIP FILE)

Compressed version of other file types. Requires an unzipping program before use.

EBOOK

EPUB

Best option for iPad, iPhone, iPod, Sony Reader, and Nook. Apple Devices: To download to an iPad, iPhone, or iPod, please download the file to a computer and transfer via a USB connection.

ENHANCED EPUB

Audio files are conveniently embedded within the book. Please note that enhanced eBooks are available for iPad, iPhone, iPod Touch, Android, and Nook Color users only. Use Safari on iOS devices for faster download.

PRC OR MOBI

Best option for Kindle, Kindle Fire, and Mobipocket devices and apps.

PDF

Readable on both desktops and mobile devices.

VIDEO

MP4 VIDEO

Playable on most computers and devices. Apple Devices: To download to an iPad, iPhone, or iPod, please download the file to a computer and transfer via a USB connection.

PDF

Printable document that may contain supplemental information like track listings, table of contents. study guide. or worksheets, depending on the program.