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IMAPI_CD_SECTOR_TYPE enumeration (imapi2.h)

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Defines the sector types that can be written to CD media.

Syntax

typedef enum _IMAPI_CD_SECTOR_TYPE {
  IMAPI_CD_SECTOR_AUDIO = 0,
  IMAPI_CD_SECTOR_MODE_ZERO = 0x1,
  IMAPI_CD_SECTOR_MODE1 = 0x2,
  IMAPI_CD_SECTOR_MODE2FORM0 = 0x3,
  IMAPI_CD_SECTOR_MODE2FORM1 = 0x4,
  IMAPI_CD_SECTOR_MODE2FORM2 = 0x5,
  IMAPI_CD_SECTOR_MODE1RAW = 0x6,
  IMAPI_CD_SECTOR_MODE2FORM0RAW = 0x7,
  IMAPI_CD_SECTOR_MODE2FORM1RAW = 0x8,
  IMAPI_CD_SECTOR_MODE2FORM2RAW = 0x9
} IMAPI_CD_SECTOR_TYPE, *PIMAPI_CD_SECTOR_TYPE;

Constants

 
IMAPI_CD_SECTOR_AUDIO
Value: 0
With this sector type, Audio data has 2352 bytes per sector/frame. This can be broken down into 588 contiguous samples, each sample being four bytes. The layout of a single sample matches the 16-bit stereo 44.1KHz WAV file data. This type of sector has no additional error correcting codes.
IMAPI_CD_SECTOR_MODE_ZERO
Value: 0x1
With this sector type, user data has 2336 bytes per sector/frame. This seldom-used sector type contains all zero data, and is almost never seen in media today.
IMAPI_CD_SECTOR_MODE1
Value: 0x2
With this sector type, user data has 2048 bytes per sector/frame. Mode1 data is the most common data form for pressed CD-ROM media. This data type also provides the greatest level of ECC/EDC among the standard sector types.
IMAPI_CD_SECTOR_MODE2FORM0
Value: 0x3
With this sector type, user data has 2336 bytes per sector/frame. All Mode 2 sector types are also known as "CD-ROM XA" modes, which allows mixing of audio and data tracks on a single disc. This sector type is also known as Mode 2 "Formless", is considered deprecated, and is very seldom used.
IMAPI_CD_SECTOR_MODE2FORM1
Value: 0x4
With this sector type, user data has 2048 bytes per sector/frame. All Mode 2 sector types are also known as "CD-ROM XA" modes, which allows mixing of audio and data tracks on a single disc.
IMAPI_CD_SECTOR_MODE2FORM2
Value: 0x5
With this sector type, user data has 2336 bytes per sector/frame, of which the final four bytes are an optional CRC code (zero if not used). All Mode 2 sector types are also known as "CD-ROM XA" modes, which allows mixing of audio and data tracks on a single disc. This sector type is most often used when writing VideoCD discs.
IMAPI_CD_SECTOR_MODE1RAW
Value: 0x6
With this sector type, user data has 2352 bytes per sector/frame. This is pre-processed Mode1Cooked data sectors, with sector header, ECC/EDC, and scrambling already added to the data stream.
IMAPI_CD_SECTOR_MODE2FORM0RAW
Value: 0x7
With this sector type, user data has 2352 bytes per sector/frame. This is pre-processed Mode2Form0 data sectors, with sector header, ECC/EDC, and scrambling already added to the data stream.
IMAPI_CD_SECTOR_MODE2FORM1RAW
Value: 0x8
With this sector type, user data has 2352 bytes per sector/frame. This is pre-processed Mode2Form1 data sectors, with sector header, ECC/EDC, and scrambling already added to the data stream.
IMAPI_CD_SECTOR_MODE2FORM2RAW
Value: 0x9
With this sector type, user data has 2352 bytes per sector/frame. This is pre-processed Mode2Form2 data sectors, with sector header, ECC/EDC, and scrambling already added to the data stream.

Remarks

Some sector types are not compatible with other sector types within a single image. The following are typical examples of this condition:

  • If the first track is audio, then all tracks must be audio.
  • If the first track is Mode1, then all tracks must be Mode1.
  • Only the three Mode2 (XA) sectors (Mode 2 Form 0, Mode 2 Form 1, and Mode 2 Form 2) may be mixed within a single disc image, and even then, only with other Mode 2 (XA) sector types.

Requirements

Requirement Value
Minimum supported client Windows Vista, Windows XP with SP2 [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Header imapi2.h

See also

IRawCDImageCreator