FREE – Complimentary
BookSync is a free, easy-to-use software application for adding music, audiobooks and other audio from a computer to the Vine 3 C2 (and the earlier Vine C1 bookreader).
With BookSync, you can also add DAISY books, both audio or text only, to your player for playback. This advanced feature also allows any plain text documents to be converted from text-to-speech and sync’d to the device.

Add music, audiobooks and other audio from your computer
Add DAISY books, both audio and text only, for playback
Convert plain text documents to speech and sync them to the device
Request a free license of BookSync
Looking for a simple way to copy audio files? Try SGSCopy, also free.