I am having trouble coppying this, nero 6 disc copy (DVD) fails part way through as does 1clickDVD, dvd decrypter doesn't recognise it as a dvd. the copy i have is a copy so it can be done but how? i have just installed dvd43free so i will give that a go, just incase encarta has bad block encoding. any help would be greatly appreciate before i end up with too many tea mats!