What are the different DVD capacities?
There are 4 main capacities for 12 cm (full size) DVDs. These are related to whether a DVD is single or double sided and whether the DVD is single or dual layered. A single sided single layered DVD will have a capacity of approximately 4.7gb (DVD-5). The dual layered version of this single sided DVD will have a capacity of approximately 8.5 gb (DVD-9). Double sided media with a single layer will have a capacity of about 9.4 gb (DVD-10). The largest capacity is the dual layered double sided DVD with a capacity of approximately 17 gb (DVD-18).