CD-R (Recordable)Recordable CD offers Digital quality in a format that's probably already in your home CD. When recording onto Recordable CDs there is no loss of sound as it exactly reproduces the sound and as with normal CDs there is no deterioration in sound quality over time.
Recordable Compact Disc also allows up to 650Mb of data to be stored very cheaply on a Compact Disc.
Data is written to the CDR using a special CD Writer, but once written, is permanently burned into the CD. If you need to be able to record, erase and re-record data, please see CDRW.