I aim to keep a copy of your photographs on file for five years. However, I suggest making a back-up of your photos from the memory stick when you receive it. Saving them on a hard drive and your computer (or in ‘the cloud’) ensures that they won’t be lost if your memory stick gets damaged or lost further down the line. If the worst happens, do contact me and if I can replace it I will do for a small fee. (To cover postage and the actually cost of the memory stick).