Originally Posted by gnur
What do you mean? How does the cluster size affect your storage space?
And I don't think there is a different file system that both windows and Android can use.
Imagine You store files with 5,7,13,15,60 kb all together 100kb
With cluster size 32, this needs 32,32,32,32,64 = 192 kb
With cluster size 16, this needs 16,16,16,16,64 = 128 kb
Chek information of a folder, and You will see file size and space used on disk