(5) Retry count  

∙ Specify the number of read retries for the same sector when an error occurs during CD-ROM decoding. 

setting value	description
00H	Data output stopped without retrying (〈ERROR〉) …… Initial value
01H to 0FH *	Retry the specified number of times, and stop outputting data if an error occurs (〈ERROR〉)
40H	Output data without retrying.
41H-4FH *	Retry the specified number of times and output data even if an error
80H	Retry infinite times
FFH	Do not change settings (CDC_PARA_NOCHG)

* Specify the number of times in the lower 4 bits.

(A) Applies to Mode1 or Form1 sectors.
(B) When initialization flag bit3 = 1 (Form2 read retry), it is also applied to Form2.
(C) When bit 2 = 1 (Mode2 subheader is not recognized) of the initialization flag, it is also applied to Mode2. 

 (6) Tray open / close and drive command  

When not resetting the software, the following tray open / close operation is performed as a drive command. (CD
(Same for playback, seek of playback position, and scan playback)
(A) In the 〈OPEN〉 state, close the tray.
・ In case of automatic type (front loading): CD block automatically closes the tray.
・ For manual type (top loading): 〈BUSY〉 state until manually closed.
(B) Open the tray when in the 〈NODISC〉 state. (See CDC_CdOpen function for details)