In Windows, when I want to copy the contents of multiple folders into another similarly named folders, all I have to do is to select those folders and the contents get copied into the appropriate folders in the destination folders. Any new files in the folders are added to the destination folder and old ones are replaced. Other files in the destination folders remain unchanged.
However, I just discovered, almost to my horror
, that when you perform the same actions in Mac OS X using Finder, the contents of the destination folders get totally replaced with the contents of the source folders. In other words, if the source folder contains 3 files and the destination folder contains 5 other files, after the copy, you don't end up with 8 files but the 3 that were originally in the source folder. The 5 original files in the destination folder get deleted! 
Can any of you Mac OS X experts tell me how I can copy the contents of multiple folders without losing files in the destination folder. The only way I've been able to get around this problem was by going into each folder individually and copying files across, one folder at a time. And this can get very tedious when there are multiple levels of subfolders in a folder. I'm sure there has to be a better way of doing what I want to do without losing files.
Thanks.




