I would like to make a back up of my photographs by storing them on a pen drive, i have around 4000 pictures, anyone know what size pen drive i would need?
Do you have a 1megapixal camera or a 10megapixal one?
This is a chart for pics on a memory card, which is the same thing.
Though pen drives are pretty good and convenient for short term backup and transporting stuff about they are not an ideal backup.
You'd be better burning them to decent quality CD's and storing them in cases in away from light (do 2 sets and keep them in different places for the best backup)
that's a tricky question because a lot of disks are branded with different names but actually made by the same people
I use TDK for important stuff (and Tesco for just shifting stuff about) but several other brands may actually be identical to TDK disks and made by the same people.
Don't use normal marker pens on CD's either! they will eat the disk surface away eventually! use the proper CD pens