the disc 90. The mounting surface 21 has a center portion concentric with the rotatable shaft of the spindle motor 31 when the tray 20 is loaded. When the disc 90 is mounted on the mounting surface 21, the outer circumference of the disc 90 is guided by the outmost circumferential wall of the mounting surface 21 stepped from the upper surface 24 of the tray 20, and the center of the disc 90 substantially coincides with that of the mounting surface 21. With this configuration, when the tray 20 is loaded, the disc 90 is stably seated on the turntable 34 since the center of the disc 90 substantially coincides with the rotatable shaft of the spindle motor 31.
However, recently, the disc 90 may vary in diameter.(223–263)

Eastern Wu (complete list) –
Sun Quan, Emperor (222–252)
Sun Liang, Emperor (252–258)
Sun Xiu, Emperor (258–264)
Sun Hao, Emperor (264–280)

Western Jin, China (complete list) –
Wu, Emperor  (266–290)
Hui, Emperor  (290–307)

Japan
Japan, Yayoi period (complete list) –
Previous emperors are considered legendary.
Ōjin, Emperor (270–310)

Korea
Baekje (complete list) –
Chogo, King (166–214)
Gusu, King (214–234)
Saban, King (234)
Goi, King (234–286)
Chaekgye, King (286–298)
Bunseo, King (298–304)

Geumgwan Gaya (complete list) –
Geodeung, King (199–259)
Mapum, King (259–291)
Geojilmi, King (291–346)

Goguryeo (complete list) –
Sansang, King (197–227)
Dongcheon, King (227–248)
Jungcheon, King (248–270)
Seocheon, King (270–292)
Bongsang, King (292–300)
Micheon, King (300–331)

Silla (complete list) –
Naehae, King (196–230)
Jobun, King (230–247)
Cheomhae, King (247–261)
Michu, King (262–284)
Yurye, King (284–298)
Girim, King (298–310)

Asia: Southeast

Cambodia
Funan –
Fàn Shīmàn, King (early 3rd century)
Fàn Jīnshēng, King (c.230)
Fàn Zhān, King (c.230–c.243 or later)
Fàn Cháng, King (after 243)
Fàn Xún, King (c.250-287)

Indonesia: Java
Salakanagara –
Dewawarman III, King (2nd–3rd century)
Dewawarman IV, King (early 3rd century)
Dewawarman V,