WD External hardrive and set top box

WD External Drives External Drives for Mac
1

My set top box will not recognize my wd external hardrive, it comes up USB full although it is new with nothing on it?

2

Try reformatting it.

3

Your STB probably does not understand the NTFS file system that came with your WD drive. You need to repartition and reformat it as FAT32.