Yamaha CRW3200IX - Manual (Page 11)

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Audio Master Quality Recording (High quality audio writing mode)
Audio Master Quality Recording enables you to create high quality audio CDs. This
mode is available for CD-R discs with a capacity of 650 MB and 700 MB. (P. 38)
Audio CDs that are created with Audio Master Quality Recording may not be played
back on certain audio recorders and CD-R/RW drives.
CD-MRW (CD Mount Rainier ReWriting)
CD-MRW is a new standard of packet writing. Compared to the ordinary packet
writing, CD-MRW provides many useful functions such as background formatting.
(P. 39)
Note