Any one have any experiance of ACT. I'm told they can do 20 hours of commentary using CD rom but th batteries only last about 45 to 50 minutes. Seems a bit strange if it can do so many hours but the batteries don't last long enough to listen to it all. I think its been installed in Edinbourgh Castle and the Vatican but itey are a bit far for me to go to see the system. Any information would be helpful. thanks Roger Burgess Tel. +44 (0)1243 785325 Fax +44 (0)1243 771061 Mobile +44 (0)385 950320 e-mail [log in to unmask]