Also see for SE-T084M - DVD±RW / DVD-RAM Drive: Manual
Select LanguagesEnglishWhen the On/Off light is orange, do not turn the PC off or remove the External DVD Writer as it maycause damage in the drive.How to Use a Horizontally Installed DriveYou can use3.15 Inch or 4.72 Inch (8cm or 12cm)discs.The drive cannot read the disc properly if any part of thedisc is place outside the tray guiding line.- Only standard round type disc(8cm,12cm) is available.- Do not use the external drive vertically.