The Wide-band O sensor is composed of a dual inner layer called "Reference cell" and "Pump cell".

Emerson's new design replaced blowers and valves with a flexible diaphragm in a dual layer.

High-speed media, both single and dual layer, is still scarce in the US, but with the relatively small price difference between 8x and 16x units, the extra money for 16x is worth it.

This drive can also burn the latest dual layer "+" and "-" format 8.5GB DVD disk.

Power consumption varies depending on the write speeds and dual layer support.

A DVD, on the other hand, can store at least 4 hours of video on one side and up to 8.7 hours by using dual layers of data on both sides of the disc.

These dual layers of limitation on the President's ability to remove PCAOB officers led to separation-of-powers violations.

The Pioneer BDR-203BK is a 8x Blu-ray burner (both single and dual layer!)

In the draft report, the Transport Committee has chosen option three, a dual layer consisting of a core and a comprehensive network.

Maximum capacity: 1.80 GB (dual layer), 900 MB (single-layer)