Avira won't allow autorun

I'm using avira antivirus and in the settings the box to block autorun is checked but I also have the box to exclude CDs & DVDs checked but if I put in a DVD to play it won't allow it, I have to disable avira in order to to view the DVD.
I am running XP home SP3 and the only way around it is to disconnect from the internet and ndisable avira.
Anyone have a cure for this. Thanks