>>> Does any of you know a way to disable data caching for /dev/sd*, maybe
>>> some entry in /etc/fstab?
>>>
>> Maybe add sync to /etc/fstab
>> /dev/camera /mnt/camera vfat noauto,user,sync 0 0
>
> according to 'man mount', sync only has effect for ext2, ext3 and
> udf.

From what I've seen it works for vfat too... (the perfomrance hit is very
visible).

--
damjan