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.
Difference Between CDR and CDRW. CDR vs CDRW. CDR (CD-R) and CDRW (CD-RW) are two classes of recordable compact discs, the difference between CD-R and CD-RW is the way they can store data. Compact discs are storage devices that are capable of storing data, music and movies that can be replayed or accessed in different ways.