The Lite-On 20x DH-20A4P-08 features built-in SMART-BURN technology providing buffer-under-run-free function and great media compatibility for high-speed writing of DVD+R / DVD+RW / DVD-R / DVD-RW / CD-R / CD-RW media. It also has SMART-X technology - providing smooth & stable Audio CD / VCD / DVD playback and high-performance DAE / VCD / DVD data extraction. The DH-20A4P-08 also has SMART-WRITE technology - a self-learning function, automatically detecting and deciding the optimal write strategy of DVD recordable media (DVD-RW & DVD-R) for the best quality.