Failed to transfere the OpenSuSE 11.0 iso-DVD-Image

For my next test of OpenSuSE 11.0 in a virtualbox session on opensolaris I downloaded the
DVD ISO image. I started on my PC and tried to move the downloaded ISO image to the
USB drive. The partition on the USB Drive is FAT32 to transfere data between Windows and
OpenSolaris.

After the download I tried to move, but got always the error message, that there is not enough
space available, although the partition had 6 gb and the other 25 gb free ??????

After burning it onto a RW-DVD, I looked up the probelm and found a hint in wikipedia.
For FAT32 this is 4gb -1 Byte !!!. So this is the problem and not enough space on the harddrive.