Unlike the conventional magnetic storage devices and technologies, CDs and CD-ROMs are not recordable. And thus, it comes with the ‘read-only’ tag. So, yes, the CD-ROM is capable of storing large amounts of data. A standard CD-ROM disc is capable of storing up to 700 MB or 900 MB of data. In fact, a single CD-ROM has the capacity to store 700 floppy disc’s information in them. You can store various types of information and content. However, you can only read this content later on and cannot alter it by any means.