This is a set of 4 CDs by Mariko Nagai. ZUTTO White Communication Heart wo WASH! Mariko Taiken (EP) #NostalgicCDs #Almost50s #Almost40s Thank you for viewing. I have checked the CDs by importing the data into a PC CD drive (operation confirmed). However, I cannot guarantee playback on all CD players. Please understand that these are used items and may show signs of aging. The 8cm single CD is in a plastic case, some of which are cracked. (Please consider this as a bonus.) Returns and refunds are not possible after shipping. They will be wrapped in bubble wrap and shipped via Nekopos.