NaturalReader is available for Mac users now. You can use the premium voices to read aloud or make audio files for iPod, iPhone, MP3 player, or CD Player

Includes all features of Free version

Allows your computer to read any text aloud to you and you can adjust the speed, speaker, and volume easily.

2 Free high quality Voices
Personal version comes with 2 Free high quality Acapela Voices.

Highlights each word as it is read

This helps those who have learning difficulties improve reading , comprehension , and spelling skills.

Converts large text file to audio file

The powerful audio output function allows you to convert a large text file to an audio file, and then export to ITunes, iPod, iPhone, or other MP3 players

Creates and modifies Pronunciation

Differences between Mac Free Version and Mac Personal Version.

Mac Personal Version comes with 2 natural sounding voices, and can convert text into audio files, while Free version does not have the above features. Mac Free Version can only read 5000 letters per time. Mac Personal Version gives you unlimited reading access.

System requirement:

Operation system: Mac OS X 10.4.1
Memory: 256 MB (512 recommended)
Free Disk Space: 30MB (Natural Voices may require 600MB free space)