ASUS BR-04B2T Internal Black optical disc drive

BR-04B2T - Blu-Ray disk drive, SATA, Black Enjoy High Definition Movie Playback
BR-04B2T is a Blu-Ray disk drive capable of high definition playback. It provides you with a superior read quality of BD-ROM (SL/DL), BD-R (SL/DL), and BD-RE (SL/DL) discs as well as a wide range of CD and DVD formats.

TTHD (True Theater High Definition)
TTHD Technology is an innovative suitE of advanced video enhancement technologies that deliver unsurpassed quality for DVD movies on PC-based home-theater systems. TTHD fills the gap between standard resolution content and high-definition display capabilities, Boosting DVD video quality to achieve HD-like results and smoother playback. TTHD enables you to enjoy high definition display.

E-green (Energy Green Engine)
The innovative drive E-Green Engine technology features an E-Green Mode that automatically closes drive applications when not in use to help conserve energy - helping the environment by decreasing CO2 emissions and reducing the depletion of trees.