At this time, the WD TV product line does not support the use of single USB drives larger than 2 TB. Doing so may cause corruption to the data, or damage to the partition. Our dual and network drives larger than 2 TB’s can continue to be used with the WD TV products. WD is currently working on a remedy to this situation, and will notify our customers when it becomes available.
This issue has been resolved for the WD TV Live, Live Plus, and the Live Hub in the latest firmware updates.
For further information, please refer to Knowledge Base Answer ID 5875 .