Multiple choice Single-sided dual-layered DVD, known as DVD-9, has a capacity of _________. 4.7 GB 9.5 GB 17 GB 8.5 GB Reveal answer Fill a bubble to check yourself D Correct answer Explanation This is correct, because the size of single-sided, single-layered DVD is 4.7 GB. Therefore, the size of this DVD will be just double of it.