It is not a movie or something like that but a bibliographic database with references to academic litearture, to install on PC. I don't think the copying will be a big problem since mostly institutions hopefully will find it interesting enough to buy and keep up a quarterly subscription for updates !!
Yes, I will state copyright all over the files but then again if some student is so eager and ingenuitive to copy it but applying special harware/software and just for his/her own use I can not be bothered - provided that there is no further selling or destribution involved ! So, I suppose I'm a compromising softy !!
I don't like the copy protection which is done on games to prevent people from making backup copies !!
I will now look into your suggested software !!
Thanks again, .....and if you think of other obtions / software please post them here !