Locking photos on CD / DVD

[Corona]

What do I do so that people do not copy the photos to a CD or DVD. Is there any program for that? These pictures can be read-only, without permission to copy it?

[Gusgr8]

There even exists softwares for such like "CD lock", but is more confusing to me is to unlock or lock photos for users I think useless. A good alternative would be 'sign' the photos (in photoshop). At least most of you who want to work even use your pictures.

[need Tos]

I prepared a DVD or SVCD with the photos (SlideShow) through ProShow Producer, hence, if the person you want to have to put in the pc, to pause at each picture and make a print screen, but it is not going to be fine and it will rather pay for the work and outside it. I do contract, where both the client, as the photographer, have rights and duties.

[Isaac1]

Now a days, it seems that there some kind of recorder that can authenticate password -
no expense check