The portable device, measuring only 5.2' (W) X 0.55' (H) X 5.2' (D) and weighing a mere 8.46 ounces, also has the ability to be powered directly via USB (no AC adaptor needed). Auto Quiet mode and PureRead can be configured as well as enabled and disabled with the Pioneer BDR-XD05S Drive Utility. Auto Quiet mode intelligently adjusts the disc rotation speed to reduce noise (useful while watching movies or listening to music), and PureRead 4 automatically adjusts the drive parameters to minimize sound glitches during music playback. PowerRead 3 can provide smoother movie playback when a disc has fingerprints or minor surface scratches. The BDR-XD05S also has unique features such as PowerRead™, Auto Quiet mode, and PureRead2+. Not only is the BDR-XD05S one of the smallest and lightest Blu-ray drives in the market, but its also one of the fastest with speeds up to 6x 2 for BD-R and BD-R DL media. The BDR-XD05S can write to BDXL 1 discs, Blu-ray discs and is backwards compatible to support DVD and CD media. The ultra-compact USB 3.0 drive is ideal for Mac users or for those who already have software. The BDR-XD05S is one of the world's smallest and lightest BD/DVD/CD portable burners supporting BDXL.