Optical disc drive beam on a smaller spot size and to read smaller pits. DVD lens supports a different focus for CD or DVD media with same laser. With the newer Blu-ray disc drives, the laser only has to penetrate 0.1 mm of material. Thus the optical assembly would normally have to have an even greater focus range. In practice, the Blu-ray optical system is separate from the DVD/CD system. During the times of CD writer drives, they are often marked with three different speed ratings. In these cases, the first speed is for write-once (R) operations, the second speed for re-write (RW)
Understanding What We've Grown to Be Be". On April 9, 2013 the album was reissued in a deluxe physical edition, featuring their three most recent singles 'Hope', 'The King of Silence',' and 'Let These Words Last Forever' as well as a DVD of tour footage, interviews and live performance segments. "Understanding What We've Grown to Be" was recorded during two sessions, the first being from February 16 through March 10, 2011, and the second being from May 16 through June 23, 2011. On June 22, the first single <nowiki>"Mis//Understanding"</nowiki> surfaced through Equal Vision' official YouTube channel. A day later, the title track was also released for