I gave a serial number for Nero 6.6 and it does

The following is taken from the Nero web page.

What can I do if Nero doesn't accept my Nero serial number?Please check the following points if Nero does not accept your serial number:

• Make sure that the latest update of your Nero version is installed.
• Make sure that you're not having any typing errors.
• Make sure that the correct Nero version is installed on your PC.

You cannot install Nero 9 using a Nero 8 serial number. Nero serial numbers are structured as follows:
Nero 9/Nero Move it/Nero BackItUp 4/Nero MediaHome 4: 9Mxx-xxxx-xxxx-… or 2Mxx-xxxx-xxxx-…
Nero 8: 1K2x-xxxx-xxxx-… or 2K2x-xxxx-xxxx-…
Nero 7: 1Cxx-xxxx-xxxx-… or 4Cxx-xxxx-xxxx-…
Nero 6: 1Axx-xxxx-xxxx-…
Nero 5: 15xx-xxxx-xxxx-…

If Nero does not accept your Nero serial number, please contact our Customer Service team providing your Nero serial number as well as a proof of purchase.
Nero's Customer Service Page.

Customer Service (Serving the U.S., Canada, and Mexico)
E-mail:
US-CustomerService@nero.com
(818) 956-7551
(Available Monday through Friday, from 9:00am until 8:00pm EST)
Please note: this is a toll call to the Los Angeles, California area.You will be responsible for any local or long distance phone chargesthat incur. This is not a technical support number and our customerservice agents are unable to assist you with any technical supportquestions.
Mail :
Nero Inc.
330 N. Brand Blvd., Suite 800
Glendale, CA 91203-2335
USA
Fax : (818) 956 7094 (US office)

There are measures you can take on your own, however going through the company is the best way to keep your actions legal.

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