drive disconnect

While ripping any DVD or Blu-ray (ISO) AnyDVD HD reports 100% "Done!" but drive seems to unmount/eject and remount disc. It usually happens around 30 - 40% during ripping process. ISO files are corrupt and or incomplete. AnyDVD HD version: 8.2.1.4 Drive: LG BD-REWH16NS40 E:\ -> \Device\CdRom3...