Before revision: Issues with recordable CDs Some , mainly earlier portable CD players do not play recordable CDs (CD-R, CD-RW) properly because of the way these CDs are recorded, and due to the significantly lower reflectivity of CD-RW.
After revision: Issues with recordable CDs Some early portable CD players do not play recordable CDs (CD-R, CD-RW) properly because of the way these CDs are recorded, and due to the significantly lower reflectivity of CD-RW.