First and foremost ....... What are your daughters photo's worth to your daughter ?
By 'archive' do you refer to scanning originals into digital format ?
What's the spin speed of her CD writer ? ( if you know )
You can get a Maxell CD-R 700mb Spindle Carry Case ( speed 52x ) of 50 CD-R's from
click here for only £6 direct from the shop or via WILKO Plus @ £6 plus p & p but remember you will need to find CD cases, jackets or a carry case to store them in once the photo's are written to them.
OR a pack of 100 Memorex for £9.60 plus p & p from click here
If your daughter only has a 'slow' CD writer say 4, 8 or 16 speed you can get cheaper disks for about 10p each but will they still work to show your great grandchildren is only a guess. Most these days are 52 speed ( 52x ) unless someone is selling old stock.
If you can afford it duplicate the disks, one for everyday use the other stored safely away.