Live Statistics Check your typing speed and accuracy as it is updated and displayed every second while you type. Personalize and Save Report Report can be personalized with your name and your results can be saved and shared easily using the link generated at the end of every test.
CDR means compact disc-recordable. Like most compact discs, CDRs can only store somewhere between 700-800MB of data. The unique thing about them is that they can only be used for recording once. After that, it is a read-only disc. As such, whatever you will record on a CDR will remain unchanged forever.
It is capable of holding around 650 million bytes of data. CD-R's were developed under the same standards, but the actual CDs were comprised of different material. While the generic CD-ROM discs uses aluminum in their construction, the CD-R discs uses gold, which makes color a distinguishing feature.