Your DVD player’s USB port enables it to play movies directly from removable media, such as USB thumb drives and external hard drives. Not all players support this feature, but those that do offer video playback that is limited only by the capacity of the drive. With newer drives offering several terabytes of storage, using an external drive significantly exceeds the relatively meager storage space of DVD discs. For compatibility with most players, the drive should be formatted with the FAT32 system. Tips Warnings Writer Bio

How to Play an External Hard Drive on a DVD Player - 25