Macsome Audio Splitter for Mac could split big audio files in unprotected MP3 or AAC file format to multiple smaller pieces in a few seconds. The ID tags of audiobook will be preserved, and the sound quality will be kept untouched while splitting.
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AVCLbas Audiobook Converter is an all-in-one AA Converter that can convert any audio books which could be played on iTunes. The conversion is 5X speed fast, and output could be CD Quality.
Downloads: 30828 - Shareware - Download Now

See the notes as you listen to your favorite music. Find and download MIDI files from the Internet using the built-in browser, and convert them to accurate sheet music. Sing along or practice your instrument while following the notes on the screen.
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AVCLabs Audio Converter for Mac is the best Mac DRM removal software program that can convert DRM protected iTunes M4P to MP3, M4A to MP3, AAC to MP3 on Mac OS X with ease and super fast speed.
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WMA to MP3 is a fast, straightforward yet FREE WMA to MP3 Converter which converts WMA to MP3.
Downloads: 35423 - Freeware - Download Now