CdromCollection.count

[The feature associated with this page, Windows Media Player SDK, is a legacy feature. It has been superseded by MediaPlayer. MediaPlayer has been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer instead of Windows Media Player SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The count property retrieves the number of available CD and DVD drives on the system.

player.cdromCollection.count
      

Possible Values

This property is a read-only Number (long).

Remarks

To retrieve the value of this property, read access to the library is required. For more information, see Library Access.

DVD-ROM drives are counted exactly like CD drives. However, the Windows Media Player control only supports DVD functionality for Windows XP or later operating systems. Typically, DVD drives can play CD media, but CD drives cannot play DVD media.

Windows Media Player 10 Mobile: This method always returns 0.

Examples

The following JScript example uses CdromCollection.count to display the number of CD and DVD drives available on the user's computer. The player object was created with ID = "Player".

// Store the count of drives found on the computer.
var numCDROMS = Player.cdromCollection.count;

// Build the string to display to the user.
var displayString = numCDROMS + " drive(s) found.";

// Show a message box with the count information.
alert(displayString);

Requirements

Requirement	Value
Version	Windows Media Player version 7.0 or later
DLL	Wmp.dll

See also

CdromCollection Object

Settings.mediaAccessRights

Settings.requestMediaAccessRights