DVD-ROM stands for Digital Versatile Disc (DVD) – Read Only Memory (ROM). What this means is with a DVD-ROM you can only read (view) the data contained in the disc.
Simply explained, when you insert a DVD-ROM in your computer you can open the folders and view the files contained in it.
For instance, if there a Word file in the DVD-ROM, you can open and read it. However, if you decide to delete it or any of the files, you can’t do it like you can with a pen drive or other storage devices like memory cards or floppy disks.
A DVD-ROM looks very much like a CD-ROM, but it can store more data (4.7GB) compared to a CD-ROM which can only hold 650MB of data.
However, there are DVD-ROM that could store more than 4.7GB.
