Dear all, I am a bit confused with all this concern about file sizes. My analysis projects range from 20MB to maybe 60MB each (obviously not including the data matrices). In this age of 100GB+ hard disk sizes, I don't understand why the size of such backups causes a problem? Is there more to a backup than just the project folder? Or are my projects uncommonly small? I'm just a bit worried that my "backups" would turn out being incomplete. Certainly it shouldn't be necessary to make a copy of the actual matrix files with each backup? I'm puzzled. Can anyobdy enlighten me? Thanks! - Martin