Problem installing City Navigator from old DVD

Former Member
Former Member
Some time ago I bought the DVD for City Navigator Europe NT 2011. For various reasons I did not use it then, but opened it today and tried to instal it. After getting through the installing location etc, it stopped, with this message:

There were errors with the installation. You may want to try installing
The installation failed.
The installer could not install the software because there was no software found to install.

Is this because the DVD is old? If so, what can I do about it?

(I have a Macbook with BaseCamp ver 4.5.2 installed.)