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FEATURE_DATA_DVD_RW_RESTRICTED_OVERWRITE structure (ntddmmc.h)

  • Article

The FEATURE_DATA_DVD_RW_RESTRICTED_OVERWRITE structure contains information for the Restricted Overwrite feature.

Syntax

typedef struct _FEATURE_DATA_DVD_RW_RESTRICTED_OVERWRITE {
  FEATURE_HEADER Header;
  UCHAR          Blank : 1;
  UCHAR          Intermediate : 1;
  UCHAR          DefectStatusDataRead : 1;
  UCHAR          DefectStatusDataGenerate : 1;
  UCHAR          Reserved0 : 4;
  UCHAR          Reserved1[3];
} FEATURE_DATA_DVD_RW_RESTRICTED_OVERWRITE, *PFEATURE_DATA_DVD_RW_RESTRICTED_OVERWRITE;

Members

Header

Contains a FEATURE_HEADER structure with header information for this feature descriptor.

Blank

Indicates, when set to 1, that the device supports the BLANK command defined by the SCSI Multimedia - 4 (MMC-4) specification, with Blanking Types of zero and one. When set to zero, this bit indicates that the device does not support this command.

Intermediate

Indicates, when set to 1, that the device supports writing on an intermediate state-bordered area and quick formatting (Format Type of 15 - Quick Format, as defined by the MMC-3 specification). When set to zero, this bit indicates that the device does not support writing on an intermediate state-bordered area nor does it support quick formatting.

DefectStatusDataRead

Corresponds to the Defect Status Bitmap Read (DSBR) bit as defined by the MMC-3 specification. When set to 1, this bit indicates that the device allows initiators to read the Defect Status Bitmap of a medium. When set to zero, this bit indicates that the device does not support the reading of Defect Status Bitmap.

DefectStatusDataGenerate

Corresponds to the Defect Status Bitmap Generate (DSBG) bit as defined by the MMC-3 specification. When set to 1, this bit indicates that the device can generate a Defect Status Bitmap during formatting. When set to zero, this bit indicates that the device cannot generate a Defect Status Bitmap during formatting.

Reserved0

Reserved.

Reserved1[3]

Reserved.

Remarks

This structure holds data for the feature named "DVD-RW Restricted Overwrite" by the MMC-3 specification. In the FEATURE_NUMBER enumeration, this feature is named FeatureRigidRestrictedOverwrite.

Devices that support this feature can only write on block boundaries. These devices cannot perform read or write operations that transfer less than a block of data. See the MMC-3 specification for more information.

Requirements

Requirement Value
Header ntddmmc.h (include Ntddcdrm.h)

See also

FEATURE_HEADER

FEATURE_NUMBER