DVD9 (or D9) means Dual-layer single sided disc DVD5(or D5) means Single-layer single sided disc There are also DVD10 and DVD18. The capacity of DVD9 is nearly double of DVD5 and can hold more data. The...
The difference between DVD+R and DVD-R Disk DVD + R or DVD + RW disk has good quality, being suitable for long-term preservation of data and video information. DVD-R or DVD-RW disk is suitable for file and...