How to change the volume name of a FAT32 filesystem?

view story

http://unix.stackexchange.com – I know I can set the volume name when I format the partition whit the -n option of mkfs.vfat. But how to just change the name whit out formating? I'm specially want to be able to use lower- and uppercase letters. In worst case, I can use a windows tool to, but windows by default transforms all letters to uppercase (but works fine whit lower-case letters in volumes created whit mkfs.vfat). (HowTos)