I know there are several post relating to this subject but today I received the following answer to my question to Nero "is the Sony DRU-500A supported by Nero 5.5.9.17"

quote
The recorder is suppoerted by the latest version.
un-quote
(their spelling)

which should put everyones mind at rest!

Unfortunatly they failed to answer my question as to why they have stopped updating their 'supported recorders' list!