afraid to resize clusters with partition magic

[rubix]

i have a 38gb harddrive, which i use for storing files and right now it is using fat32 with 32K clusters. i want to resize them down to 16K and partition magic claims i can do it, but it says it is for 30gb to 32gb harddrives right next to the 32K clusters menu. is this safe or will i lose or corrupt my data? can i go back to 32K safely if it messes anything up?

 

[bacillus]

don't do it as if you resize you'll probably find defrag & scandisk will give you errors if you try to use them on that hdd!

 

[rubix]

k, i read the helpfile too and it seems it will only let me use up to 32gb anyway. thanks.