access macro 

 type 

 Description 

 CDC_FILE_FAD (file) 

 Sint32 

 File start frame address 

 CDC_FILE_SIZE (file) 

 Sint32 

 File size in bytes Count) * 1 

 CDC_FILE_UNIT (file) 

 Uint8 

 File unit size 

 CDC_FILE_GAP (file) 

 Uint8 

 Gap size 

 CDC_FILE_FN (file) 

 Uint8 

 File number * 2 

 CDC_FILE_ATR (file) 

 Uint8 

 File attributes 

 * 1: Net file size without gap sectors when interleaving.
* 2: If there is no directory record system information, the file number is 0. 

 * 3: bit1 is the directory bit of the file flag in the directory record.
Enabled when there is no system information in the directory record.
(If there is system information, bit7 is prioritized for directory identification)
* 4: Bits 3 to 7 are attribute information conforming to the CD-ROM XA standard.
If there is no system information, bits 3 to 7 are all 0.