You can still burn and listen to them if they are on your computer. Just determine where they have been saved, right-click on the files, select Open with and choose an audio player from your computer. If you can't locate where they have been saved, go to Start, type kind:audio in the search box, right-click the audio books and select Open file location.
Also, right-click the file, select Properties, open the General tab and check the file format of the audio book. After that, navigate to Start > Control Panel > Programs > Default Programs and click the first option (Set your default programs). Select OpenOffice from the list and then press Choose defaults for this program. Uncheck the box next to audio books files and then press Save.
Note: In order to burn the files, you can try using a utility from the Software Informer database.