Support double layer DVD+/- R9 recording functionSmart-burn avoiding buffer under run error, automatically adjusting writing strategy & walking OPC to provide the best burning qualitySmart-X function adjusts CD-DA/VCD/DVD data extraction to a fastest allowable speed according to both data request rate from host and disk qualityABS system reduce vibration and noise during recording and readingSupport fixed packet, variable packet, TAO, SAO, DAO, random access write, incremental, sequential recording, restricted overwrite, layer jump recording, raw mode burning & over-burnSupport both 8cm and 12cm disc of CD and DVD familySupported transfer mode: PIO mode 4, DMA mode 2 and Ultra DMA mode 5