With this patch fat became case-sensitive which is probably wrong. 
Corrected version of patch attached
Sorry
Vladimir 'phcoder' Serbinenko
phcoder wrote:
> Hello. Now the handling of FAT-labels keeps the trailing spaces and 
> ignores VFAT label generated by mlabel tool. Here is the patch to 
> correct this. Unfortunately m$ when user set a mixed case label only 
> uppercase one is saved to FS, moreover m$ keeps the mixed case label in 
> the registry fooling  the user. So no way to read these. To test mixed 
> case labels be sure that mlabel reports it as mixed case.
> Thanks
> Vladimir 'phcoder' Serbinenko
>