Samsung SE-T084M-RSWD - Manual (Page 21)

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This part of the manual is to prevent damages or data loss.
Read carefully and use the device properly.
Do not place it under the direct sunlight.
Place it so that it sits on its side on a flat surface.
Do not scratch or place a label on the disc.
Handle the disc with caution to prevent damage from external shock.
Do not expose it to severe temperature fluctuations.
(Exposure to such environment may cause congealing.)