This Blu-ray drive is not capable of writing to recordable Blu-ray Discs, but can read them at 5X speed. The ASUS BC-1205PT is also capable of writing single or dual layer DVDs, with a max speed of 12X for DVD±R, 6X for DVD ±RW and 4X for DVD±R DL. CD-Rs and CD-RWs can be written at 24X. This Blu-ray Disc drive also features buffer underrun protection and automatic write speed adjustment in order to prevent data from becoming lost. Compared to the ASUS BC-06B1ST, this drive features faster disc access times by 100 MS: 250 MS for Blu-ray and 150 MS for CD/DVD.