I partitioned my 4GB flash drive into more than one partition on BBR, but Windows only recognises the first partition. Why?
Windows XP and Vista do not expect small drives to be partitioned, and in our tests they prevent access to other than the first partition. This is true whether or not the drive is partitioned and formatted on BBR or Mac OSX (for example). The other partitions are usable on BRR and Mac OSX but not on Windows. To use small drives with Windows, we recommend that they are formatted as a single partition. Microsoft does not permit you to partition a small drive on a Windows PC although is it supported by other operating systems.