This Freeware plug-in will install WMA support (decoding) within Nero 5.5. To install, just download and execute the file! This software is for the Windows operating systems. 
Download
Nero WMA Plugin 2.0.9.1
Cdfreaks.com reports that on Oggnet.de we can read that a user has posted a
link to the first Ogg Vorbis plugin for Ahead Nero Burning ROM. The plugin 238Kb
in size has been developed by someone with the nickname Mausua.
To make it work, just drop nxMyOgg.dll from te package in your Ahead//Shared//AudioPlugins
folder.
Download
Ogg Vorbis plugin for Nero
9Down