The v-Ls423 is an Interactive HD Video Player with 10/100 Ethernet and USB-C. We prefer to store video on solid state flash memory, as opposed to any form of rotating memory (hard drive, CD-ROM, or DVD). The reason for this is that all rotating media will eventually fail. Solid state memory players will last almost forever, with little or no service. With no moving parts, these video players are designed to run 24/7 year after year.