Memorex CD-R offers 80 minutes of audio recording time or 700 Mb of data storage, available in 1x - 52x write Speed compatible and can only be recorded on a computer CD writer.  Memorex CD-R offers the best playback and recording compatibility with computer and home audio recorders and players.  These discs are perfect for saving data files, or backing-up your favorite music. The write-once format stores your data permanently.