[UKDave]

We are going to France this weekend for 2 weeks. Finally I have a car where I don't need to mess with the headlights.

Anyhow, I have the integrated satnav with the control box under the boot floor and the software comes on 4 discs. Following another users suggestion that if I waited to get to France and wanted a postcode, I would need to insert a different disc, I entered all the destinations a few days ago. However, I still have not been asked to insert any other disc than the current UK one. The system seems to have all the data it needs, so I have 2 questions.

1. Will I need to insert the other disc at some stage, if so, I would rather do it now, ie should I put the disc with France in before I go?
2. If I don't need the other discs, what are they for?

Cheers.