consoles. Initially there were no digital video outputs such as DVI or HDMI on the Xbox 360; instead, HD-quality output could only be produced over component video (used by both the 3 RCA component cable and the Japanese D-terminal cable) and later VGA (via a software update). An HDMI port was introduced to the Xbox 360 by July 2007 with the introduction of the Elite model. All Xbox 360 SKUs currently manufactured feature an HDMI port. A wide array of SDTV and HDTV resolutions are supported by the console hardware; up to 1080p after the October 2006 software upgrade. While most games are rendered natively at 720p, the video from all games can be scaled by the hardware to whatever resolution the user has set in the console's settings; from 480i NTSC and 576i PAL all the way to 1080p HDTV. DVD storage Xbox 360 is equipped with a 12× DVD drive, with a data transfer rate of 16.5 MB/s. The original production DVD drives were manufactured by LG, Samsung, and Sony. Beginning in November 2006, a new model the BenQ VAD6038 was introduced, which is said to run faster than the previous models and, in addition, is much quieter. There is a new drive by LiteOn. Games are stored on standard 8.5 GB dual-layer DVD-ROMs; however initially only 7.3 GB (6.8 GiB) were allocated to be used for games on the "Xbox Game Disc 2" (XGD2) early format. With the XGD3 later format introduced in 2011, the usable space was brought up to 8.3 GB (7.8 GiB). This marked an increase in available space for games from 85% to nearly 98%. In both formats, the unallocated space for games is used for anti-piracy security software. The option to apply a regional lockout to games is available to publishers, although DVD region codes are always enforced for movies. Microsoft has implemented methods to prevent hacking through the drive. Later drive models have the external debug triggering removed and black hard glue added to cover all the chip and controller pins. The drive is able to read both DVD±R and DVD±RW in addition to being able to play DVD-Video out of the box, unlike its predecessor, which required the purchase of an add-on remote. The system is also capable of playing standard CDs along with CD-R/RW, CD-DA, CD-ROM XA, CD-Extra, WMA-CD, MP3-CD, and JPEG Photo CD. Some users reported problems with