a flash disc can store info such as a project you do on Microsoft or something. While a DVD can only store video.
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There's not much of a difference in size, but if you put a PS2 disk into a DVD player, you probably just get the audio, if anything. This is very rare.
It is neither, CD DVD and hard disk is STORAGE not input or output.
The difference between optical and non optical is the way the drive in the DVD reads the disk. Optical is a better and more higher quality reader. So the picture is much better.
DVD and RAM are not permanent storage devices.
Data can be stored on floppy disk, hard disk, memory stick, CD or DVD.
Floppy Disk - 144 MB CD-R - 700 MB DVD-R - 4.7 GB Hard Disk - Up to 10 TB
Dvd+r
Usually much faster
It is a Hard Drive.
DVD-ROMCD-ROMExternal hard diskfloppy diskpen drive
CD, DVD, hard disk, sd card, floppy disk
Disc = DVD or CD or Hard disk?? If its a DVD or CD then the chances are it has been formatted incorrectly. If its a hard disk then it probably has not been partitioned correctly or the disk partition is damaged, or the drive has not been formatted correctly