Disclaimer: This is not an Audible ad.
The original unabridged Rowan of Rin audiobooks produced by the ABC has been released on Amazon Audible, all narrated by Rachael Blake. You can start a free thirty day trial and get a one of the books for free, or join, buy one of the books, get a credit and spend that credit on another one of the books, or any other book of your choice. Enjoy!
https://www.audible.co.uk/series?asin=B076VYPXLD
For UK people: https://www.audible.co.uk/series?asin=B076VYPXLD
For AU people: https://www.audible.com.au/series?asin=B076W33SJL
The audiobooks are also available as on the ABC Shop in the form of CDs: https://shop.abc.net.au/rowan-of-rin-3cd and MP3: https://shop.abc.net.au/rowan-of-rin-mp3cd