How to store more data into DVD

Digital videodiscs can store different amounts of information, depending on the number of data layers available. A DVD with a single layer for storing data can hold up to 4.7 gigabytes. 

A DVD with a double layer for storage (also called a "dual-layer" DVD) can store up to 8.5 gigabytes of data. 

So the amount of recorded video you can fit on a disc varies based on the type of DVD you use (and what your recorder can handle), as well as the quality of your recording. Some DVD burners and recording programs also offer different video-quality modes, where the lower the quality, the more video you can squeeze onto a disc. 

Most commercial DVDs, like those for Hollywood movies, use the dual-layer discs to hold a greater amount of video at a higher quality — and still have room for things like bonus features. If you have ever watched a movie on DVD and noticed a pause or stutter about halfway into the film, you are most likely seeing the DVD player shift from one data layer to the next on the disc inside.