I have been scanning my old slides on to the computer and then putting them in some sort of order and numbering from 1-60.When I copied them onto a CD and played on my DVD player they were in perfect order. When I gave the CD to my sister to put on her computer the pictures came out in all sorts of order. Can you explain why and have I done something wrong? And how can I stop it happening again. Someone has mentioned "Finalising the disc" What is this and how do I do it? Hoping someone can help me Thanks Pat Baker