I have bought 5 photosticks from you (3 x 64GB an 2 that do not show their size on the case)You say that they will not save duplicates BUT when I look at one of the sticks it has numerous duplicates - not of just one photo but of groups. I have started to delete the duplicates and have one that lists the file number and in brackets (meanin copy number) 40It is going to take a huge amount of time to try and delete all duplicate Why has this happened - your blurb says it doesn't - should I delete all files and start again??? Perhaps I didnot need the number of sticks I bought from you Please advise I have been told after 60 days no refund so why tell me to send them back User's recommendation: do not plug in and go without going to options and ticking do not copy duplicates.