Instructions
Turn the Xbox 360 off. Connect the USB flash drive containing the video you want to download to any available USB port on the Xbox 360. If applicable, connect the other storage devices to their appropriate ports on the Xbox 360.
Turn the Xbox 360 on. Select the "My Xbox" menu. Select "System Settings."
Select "Memory." Select the USB flash drive with the video that you want to download. Select "Videos."
Scroll down and select the video that you want to download to the Xbox 360. Select "Copy." You will be presented with a list of options: Xbox 360 hard drive, memory card or USB flash drive. Select the storage device to which you want to copy the video.