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Win32_CDROMDrive class

The Win32_CDROMDrive WMI class represents a CD-ROM drive on a computer system running Windows.

Note  Be aware that the name of the drive does not correspond to the logical drive letter assigned to the device.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

[Provider("CIMWin32")]class Win32_CDROMDrive : CIM_CDROMDrive
{
  uint16   Availability;
  uint16   Capabilities[];
  string   CapabilityDescriptions[];
  string   Caption;
  string   CompressionMethod;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  uint64   DefaultBlockSize;
  string   Description;
  string   DeviceID;
  string   Drive;
  boolean  DriveIntegrity;
  boolean  ErrorCleared;
  string   ErrorDescription;
  string   ErrorMethodology;
  uint16   FileSystemFlags;
  uint32   FileSystemFlagsEx;
  string   Id;
  datetime InstallDate;
  uint32   LastErrorCode;
  string   Manufacturer;
  uint64   MaxBlockSize;
  uint32   MaximumComponentLength;
  uint64   MaxMediaSize;
  boolean  MediaLoaded;
  string   MediaType;
  string   MfrAssignedRevisionLevel;
  uint64   MinBlockSize;
  string   Name;
  boolean  NeedsCleaning;
  uint32   NumberOfMediaSupported;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  string   RevisionLevel;
  uint32   SCSIBus;
  uint16   SCSILogicalUnit;
  uint16   SCSIPort;
  uint16   SCSITargetId;
  uint16   SerialNumber;
  uint64   Size;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
  real64   TransferRate;
  string   VolumeName;
  string   VolumeSerialNumber;
};

Members

The Win32_CDROMDrive class has these types of members:

Methods

The Win32_CDROMDrive class has these methods.

MethodDescription
Reset

Not implemented. To implement this method, see the Reset method in CIM_CDROMDrive for documentation.

SetPowerState

Not implemented. To implement this method, see the SetPowerState method in CIM_CDROMDrive for documentation.

 

Properties

The Win32_CDROMDrive class has these properties.

Availability
Data type: uint16
Access type: Read-only

Availability and status of the device. Inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Running or Full Power

4 (0x4)

Warning

5 (0x5)

In Test

6 (0x6)

Not Applicable

7 (0x7)

Power Off

8 (0x8)

Off Line

9 (0x9)

Off Duty

10 (0xA)

Degraded

11 (0xB)

Not Installed

12 (0xC)

Install Error

13 (0xD)

Power Save - Unknown

The device is known to be in a power save mode, but its exact status is unknown.

14 (0xE)

Power Save - Low Power Mode

The device is in a power save state but still functioning, and may exhibit degraded performance.

15 (0xF)

Power Save - Standby

The device is not functioning, but could be brought to full power quickly.

16 (0x10)

Power Cycle

17 (0x11)

Power Save - Warning

The device is in a warning state, though also in a power save mode.

 

Capabilities
Data type: uint16 array
Access type: Read-only

Array of capabilities of the media access device. For example, the device may support random access (3), removable media (7), and automatic cleaning (9). This property is inherited from CIM_MediaAccessDevice.

ValueMeaning
0

Unknown

1

Other

2

Sequential Access

3

Random Access

4

Supports Writing

5

Encryption

6

Compression

7

Supports Removable Media

8

Manual Cleaning

9

Automatic Cleaning

10

SMART Notification

11

Supports Dual-Sided Media

12

Predismount Eject Not Required

 

CapabilityDescriptions
Data type: string array
Access type: Read-only

Array of more detailed explanations for any of the access device features indicated in the Capabilities array. Each entry of this array is related to the entry in the Capabilities array that is located at the same index. This property is inherited from CIM_MediaAccessDevice.

Caption
Data type: string
Access type: Read-only

Short description of the object—a one-line string. This property is inherited from CIM_ManagedSystemElement.

CompressionMethod
Data type: string
Access type: Read-only

Algorithm or tool used by the device to support compression. If it is not possible or not desired to describe the compression scheme (perhaps because it is not known), use the following words: "Unknown" to represent that it is not known whether the device supports compression capabilities; "Compressed" to represent that the device supports compression capabilities but either its compression scheme is not known or not disclosed; and "Not Compressed" to represent that the device does not support compression capabilities. This property is inherited from CIM_MediaAccessDevice.

ConfigManagerErrorCode
Data type: uint32
Access type: Read-only

Windows Configuration Manager error code.

ValueMeaning
0 (0x0)

Device is working properly.

1 (0x1)

Device is not configured correctly.

2 (0x2)

Windows cannot load the driver for this device.

3 (0x3)

Driver for this device might be corrupted, or the system may be low on memory or other resources.

4 (0x4)

Device is not working properly. One of its drivers or the registry might be corrupted.

5 (0x5)

Driver for the device requires a resource that Windows cannot manage.

6 (0x6)

Boot configuration for the device conflicts with other devices.

7 (0x7)

Cannot filter.

8 (0x8)

Driver loader for the device is missing.

9 (0x9)

Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.

10 (0xA)

Device cannot start.

11 (0xB)

Device failed.

12 (0xC)

Device cannot find enough free resources to use.

13 (0xD)

Windows cannot verify the device's resources.

14 (0xE)

Device cannot work properly until the computer is restarted.

15 (0xF)

Device is not working properly due to a possible re-enumeration problem.

16 (0x10)

Windows cannot identify all of the resources that the device uses.

17 (0x11)

Device is requesting an unknown resource type.

18 (0x12)

Device drivers must be reinstalled.

19 (0x13)

Failure using the VxD loader.

20 (0x14)

Registry might be corrupted.

21 (0x15)

System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.

22 (0x16)

Device is disabled.

23 (0x17)

System failure. If changing the device driver is ineffective, see the hardware documentation.

24 (0x18)

Device is not present, not working properly, or does not have all of its drivers installed.

25 (0x19)

Windows is still setting up the device.

26 (0x1A)

Windows is still setting up the device.

27 (0x1B)

Device does not have valid log configuration.

28 (0x1C)

Device drivers are not installed.

29 (0x1D)

Device is disabled. The device firmware did not provide the required resources.

30 (0x1E)

Device is using an IRQ resource that another device is using.

31 (0x1F)

Device is not working properly. Windows cannot load the required device drivers.

 

ConfigManagerUserConfig
Data type: boolean
Access type: Read-only

If True, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.

CreationClassName
Data type: string
Access type: Read-only

Name of the first concrete class that appears in the inheritance chain used in the creation of an instance. When used with the other key properties of the class, the property allows all instances of this class and its subclasses to be identified uniquely. This property is inherited from CIM_LogicalDevice.

DefaultBlockSize
Data type: uint64
Access type: Read-only

Default block size, in bytes, for this device. This property is inherited from CIM_MediaAccessDevice.

For more information about using uint64 values in scripts, see Scripting in WMI.

Description
Data type: string
Access type: Read-only

Description of the object. This property is inherited from CIM_ManagedSystemElement.

DeviceID
Data type: string
Access type: Read-only
Qualifiers: Key

Unique identifier for a CD-ROM drive. This property is inherited from CIM_LogicalDevice.

Drive
Data type: string
Access type: Read-only

Drive letter of the CD-ROM drive.

Example: "d:\"

DriveIntegrity
Data type: boolean
Access type: Read-only

If True, files can be accurately read from the CD device. This is achieved by reading a block of data twice and comparing the data against itself.

ErrorCleared
Data type: boolean
Access type: Read-only

If True, the error reported in LastErrorCode is now cleared.

ErrorDescription
Data type: string
Access type: Read-only

More information about the error recorded in LastErrorCode, and information about corrective actions that can be taken.

ErrorMethodology
Data type: string
Access type: Read-only

Type of error detection and correction supported by this device. This property is inherited from CIM_MediaAccessDevice.

FileSystemFlags
Data type: uint16
Access type: Read-only
Qualifiers: Deprecated

This property is obsolete. In place of this property, use FileSystemFlagsEx.

FileSystemFlagsEx
Data type: uint32
Access type: Read-only

File system flags associated with the Windows CD-ROM drive. This parameter can be any combination of flags, but FS_FILE_COMPRESSION and FS_VOL_IS_COMPRESSED are mutually exclusive.

ValueMeaning
CASE_SENSITIVE_SEARCH
1 (0x1)

The file system supports case-sensitive file names.

CASE_PRESERVED_NAMES
2 (0x2)

The file system preserves the case of file names when it places a name on a disk.

UNICODE_ON_DISK
4 (0x4)

The file system supports Unicode in file names as they appear on the disk.

PERSISTENT_ACLS
8 (0x8)

The file system preserves and enforces access control lists (ACLs). For example, the NTFS file system preserves and enforces ACLs and the FAT file system does not.

FILE_COMPRESSION
16 (0x10)

The file system supports file-based compression.

VOLUME_QUOTAS
32 (0x20)

The file system supports disk quotas.

SUPPORTS_SPARSE_FILES
64 (0x40)

The file system supports spare files.

SUPPORTS_REPARSE_POINTS
128 (0x80)

The file system supports reparse points.

SUPPORTS_REMOTE_STORAGE
256 (0x100)

The file system supports the remote storage of files.

SUPPORTS_LONG_NAMES
16384 (0x4000)

The file system supports file names that are longer than eight characters.

VOLUME_IS_COMPRESSED
32768 (0x8000)

The specified disk volume is a compressed volume, for example, a DoubleSpace volume.

READ_ONLY_VOLUME
524289 (0x80001)

The specified volume is read-only.

SUPPORTS_OBJECT_IDS
65536 (0x10000)

The file system supports object identifiers.

SUPPORTS_ENCRYPTION
131072 (0x20000)

The file system supports the Encrypted File System (EFS).

SUPPORTS_NAMED_STREAMS
262144 (0x40000)

The file system supports named streams.

 

Example: 0

Id
Data type: string
Access type: Read-only

Drive letter that uniquely identifies this CD-ROM drive.

Example: "d:\"

InstallDate
Data type: datetime
Access type: Read-only

Date and time the object is installed. This property does not need a value to indicate that the object is installed. This property is inherited from CIM_ManagedSystemElement.

LastErrorCode
Data type: uint32
Access type: Read-only

Last error code reported by the logical device.

Manufacturer
Data type: string
Access type: Read-only

Manufacturer of the Windows CD-ROM drive.

Example: "PLEXTOR"

MaxBlockSize
Data type: uint64
Access type: Read-only

Maximum block size, in bytes, for media accessed by this device. This property is inherited from CIM_MediaAccessDevice.

For more information about using uint64 values in scripts, see Scripting in WMI.

MaximumComponentLength
Data type: uint32
Access type: Read-only

Maximum length of a filename component supported by the Windows CD-ROM drive. A file name component the portion of a file name between backslashes. The value can be used to indicate that long names are supported by the specified file system. For example, for a FAT file system supporting long names, the function stores the value 255, rather than the previous 8.3 indicator. Long names can also be supported on systems that use the NTFS file system.

Example: 255

MaxMediaSize
Data type: uint64
Access type: Read-only

Maximum size, in kilobytes, of media supported by this device. This property is inherited from CIM_MediaAccessDevice.

For more information about using uint64 values in scripts, see Scripting in WMI.

MediaLoaded
Data type: boolean
Access type: Read-only

If True, a CD-ROM is in the drive.

MediaType
Data type: string
Access type: Read-only

Type of media that can be used or accessed by this device. Possible values are:

CdRomOnly
CdRomWrite
DVDRomOnly
DVDRomWrite

Windows Server 2003:  Possible values are:

Random Access
Supports Writing
Removable Media
CD-ROM
MfrAssignedRevisionLevel
Data type: string
Access type: Read-only

Firmware revision level that is assigned by the manufacturer.

Windows Server 2003:  This property is not available.

MinBlockSize
Data type: uint64
Access type: Read-only

Minimum block size, in bytes, for media accessed by this device. This property is inherited from CIM_MediaAccessDevice.

For more information about using uint64 values in scripts, see Scripting in WMI.

Name
Data type: string
Access type: Read-only

Label for the object. When subclassed, the property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.

NeedsCleaning
Data type: boolean
Access type: Read-only

If True, the media access device needs cleaning. Whether manual or automatic cleaning is possible is indicated in the Capabilities property. This property is inherited from CIM_MediaAccessDevice.

NumberOfMediaSupported
Data type: uint32
Access type: Read-only

Maximum number of media that can be supported or inserted, when the media access device supports multiple individual media. This property is inherited from CIM_MediaAccessDevice.

PNPDeviceID
Data type: string
Access type: Read-only

Windows Plug and Play device identifier of the logical device. This property is inherited from CIM_LogicalDevice.

Example: "*PNP030b"

PowerManagementCapabilities
Data type: uint16 array
Access type: Read-only

Array of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.

ValueMeaning
0 (0x0)

Unknown

1 (0x1)

Not Supported

2 (0x2)

Disabled

3 (0x3)

Enabled

The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.

4 (0x4)

Power Saving Modes Entered Automatically

The device can change its power state based on usage or other criteria.

5 (0x5)

Power State Settable

The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.

6 (0x6)

Power Cycling Supported

The SetPowerState method can be invoked with the PowerStateparameter set to 5 (Power Cycle).

7 (0x7)

Timed Power-On Supported

The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on.

 

PowerManagementSupported
Data type: boolean
Access type: Read-only

If True, the device can be power-managed, which means that it can be put into suspend mode, and so on. The property does not indicate that power management features are currently enabled, only that the logical device is capable of power management. This property is inherited from CIM_LogicalDevice.

RevisionLevel
Data type: string
Access type: Read-only

Firmware revision level of the Windows CD-ROM drive.

SCSIBus
Data type: uint32
Access type: Read-only

SCSI bus number for the disk drive.

Example: 0

SCSILogicalUnit
Data type: uint16
Access type: Read-only

SCSI logical unit number (LUN) of the disk drive. The LUN is used to designate which SCSI controller is being accessed in a system with more than one controller being used. The SCSI device identifier is similar, but is the designation for multiple devices on one controller.

Example: 0

SCSIPort
Data type: uint16
Access type: Read-only

SCSI port number of the disk drive.

Example: 1

SCSITargetId
Data type: uint16
Access type: Read-only

SCSI identifier number of the Windows CD-ROM drive.

Example: 0

SerialNumber
Data type: uint16
Access type: Read-only

Number supplied by the manufacturer that identifies the physical media. Example: WD-WM3493798728.

Windows Server 2003:  This property is not available.

Size
Data type: uint64
Access type: Read-only
Qualifiers: Units (Bytes)

Size of the disk drive.

For more information about using uint64 values in scripts, see Scripting in WMI.

Status
Data type: string
Access type: Read-only

Current status of the object. Various operational and nonoperational statuses can be defined. Operational statuses include: "OK", "Degraded", and "Pred Fail" (an element, such as a SMART-enabled hard disk drive, may be functioning properly but predicting a failure in the near future). Nonoperational statuses include: "Error", "Starting", "Stopping", and "Service". The latter, "Service", could apply during mirror-resilvering of a disk, reload of a user permissions list, or other administrative work. Not all such work is online, yet the managed element is neither "OK" nor in one of the other states. This property is inherited from CIM_ManagedSystemElement.

The values are:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"
StatusInfo
Data type: uint16
Access type: Read-only

State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Enabled

4 (0x4)

Disabled

5 (0x5)

Not Applicable

 

SystemCreationClassName
Data type: string
Access type: Read-only

Value of the scoping computer's CreationClassName property.

SystemName
Data type: string
Access type: Read-only

Name of the scoping system.

TransferRate
Data type: real64
Access type: Read-only
Qualifiers: Units (KiloBytes per Second)

Transfer rate of the CD-ROM drive. A value of -1 indicates that the rate cannot be determined. When this happens, the CD is not in the drive.

VolumeName
Data type: string
Access type: Read-only

Volume name of the Windows CD-ROM drive.

VolumeSerialNumber
Data type: string
Access type: Read-only

Volume serial number of the media in the CD-ROM drive.

Example: A8C3-D032

Remarks

The Win32_CDROMDrive class is derived from CIM_CDROMDrive which derives from CIM_MediaAccessDevice. The CIM_MediaAccessDevice class derives from CIM_LogicalDevice.

Examples

The following VBScript example determines if a CD is in a CDROM drive.


strComputer = "."
Set objWMIService = GetObject(_
    "winmgmts:\\" & strComputer & "\root\cimv2")
Set colItems = objWMIService.ExecQuery( _
    "Select * from Win32_CDROMDrive")
For Each objItem in colItems
    Wscript.Echo "Device ID: " _
        & objItem.DeviceID
    Wscript.Echo "Media Loaded: " _
        & objItem.MediaLoaded
Next


Requirements

Minimum supported client

Windows Vista

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

MOF

CIMWin32.mof

DLL

CIMWin32.dll

See also

Computer System Hardware Classes
WMI Tasks: Computer Hardware
WMI Tasks: Disks and File Systems

 

 

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