Copyright: Copyright(C) 1996 TEAC Co. All rights reserved.


About the Changer Assistance Utility

The Changer Assistance Utility is a utility especially designed for Windows95 which allows you to automatically change the settings of a range of TEAC changer devices. Once you have made the desired changes to the settings, press the Apply button to execute the changes.  If you decide not to implement the changes, press the Cancel button.  With the exception of the AutoRun function, any changes to settings are enabled only after restart.

Please read carefully :

This utility edits a range of key data from the registry.  Any hard break such as a restart during the editing of the key data may damage the registry.TEAC cannot accept any responsibility for damage to the registry or errors making it impossible to restart that may result from the use of this utility. Always back up the registry before making any changes.


About AutoRun

This item enables or disables the AutoRun function.

Enabling this function (by checking the check box), enables AutoRun for every CD-ROM device connected to the system.

Disable AutoRun.  (Mask)

Enable AutoRun.  (Unmask)

For further details, please refer to the following items:

Change Key (AutoRun)

Please read carefully


About AutoPlay

This item enables or disables the AutoPlay function.

Enabling this function (by checking the check box), enables AutoPlay for every CD-ROM device connected to the system.

Disable AutoRun.  (Mask)

Enable AutoRun.  (Unmask)

For further details, please refer to the following items:

Change Key (AutoRun)

Please read carefully


About Auto Insert Notification

This item enables or disables the Auto Insert Notification function.

Enabling this function (by checking the check box) enables Auto Insert Notification for every CD-ROM device connected to the system. Press the Apply button to execute the change. If you decide not to implement the changes, press the Cancel button.  To enable the function, restart the system.

Enable Auto Insert Notification.

Disable Auto Insert Notification.

For further details, please refer to the following items:

Change Key (Auto Insert)

Please read carefully


About Sort Drive Letter

This item enables or disables the Sort Drive Letter function.

Enabling this function (by checking the check box) sorts the drive letters of all CD-ROM devices connected to the system.  If only one CD-ROM drive is connected to the system, there is no need to change the order of drive letters.  Press the Apply button to execute the change.  If you decide not to implement the changes, press the Cancel button.  To enable the function, restart the system.

Enable Sort Drive Letter.

Disable Sort Drive Letter.

Important :

In the following cases, the Sort Drive Letter function will not operate normally even if more than one CD-ROM device is connected to the system:

(1) If two or more of the CD-ROM devices have the same Target ID.

(2) If the LUN of the CD-ROM devices is not continuous or abnormal.

(3) If the device driver does not support the Changer.

(4) If there is a registry error.

For further details, please refer to the following items:

Change Key (Sort Drive Letter)

Please read carefully


About Multiple/Single Drive Letter mode

This item allows you to switch between Multiple and Single Drive Letter modes.

Press the Apply button to execute the change.  If you decide not to implement the changes, press the Cancel button.  To enable the function, restart the system.

Important :

If the device driver Teacidec.mpd is not found in either the C:\TEAC\SINGLE or the C:\TEAC\MULTI directory, a dialog box will appear inviting you to locate the file:

"Please locate the path containing Teacidec.mpd"

Normally, the button for Multiple Drive Letter mode is on. (Switched to Multiple Drive Letter mode.)

To switch to Single Drive Letter mode, click the button for Single Drive Letter mode.

For further details, please refer to the following items:

What is Multiple/Single Drive Letter mode?


The Apply button

Executes the content of each setting.  Once this button is pressed, the settings are not enabled until the system is shut down normally.  If a restart is required to enable the settings, a dialog box will appear inviting you to restart the system.  In this case, you must restart in order to

enable the new settings (with the exception of the AutoRun function).

When the restart dialog box appears, select "No" if you do not intend to restart the system immediately.


What is Multiple/Single Drive Letter mode

What is Multiple Drive Letter mode?

When connecting a TEAC Changer Drive to the system, it is usual to install the special device driver.  When this driver is installed, it allocates a separate drive letter to each slot of the TEAC Changer Drive.  This mode is known as Multiple Drive Letter mode.

For instance, if the first drive letter allocated to a drive with 6 slots is E, drive letters will be allocated to each subsequent slot in alphabetical order as follows:

Slot 1 :  E:

Slot 2 :  F:

Slot 3 :  G:

Slot 4 :  H:

Slot 5 :  I:

Slot 6 :  J:

What is Single Drive Letter mode?

Multiple Drive Letter mode allocates a separate drive letter to each slot in the drive.  In Single Drive Letter mode, when a TEAC Changer Drive is connected to the system, the driver allocates a single drive letter to the drive as a whole, rather than to each slot.

In this mode, a single drive letter is used to access all the slots in the drive.

For instance, the current slot of the drive on startup is always Slot 1, so if the drive letter assigned to a 6-slot drive is E, the letter E will be allocated to Slot 1 on startup:

Slot 1:  E

If you then make Slot 2 current, the drive letter allocation will become

Slot 2:  E

and you will be able to access the disk in Slot 2.

Use the same procedure to make any other slot current.


Change Key (Sort Drive Letter)

Executed by changing the registry HKEY_LOCAL_MACHINE\Enum･SCSI\(varies according to system) \UserDriveLetterAssignment key data to "1".

To return to the original setting, use the registry editor (Regiedit.exe) command to change the key data.

Note:  The registry holds important system functions.  Modifying the registry may result in a malfunction of the system.  Always back up the registry before making any changes.

For further details, please refer to the following items:

Please read carefully


Please read carefully:

This utility edits a range of key data from the registry.  Any hard break such as a restart during the editing of the key data may damage the registry.

TEAC cannot accept any responsibility for damage to the registry or errors making it impossible to restart that may result from the use of this utility.

 Always back up the registry before making any changes.


Change Key (AutoRun)

Executed by changing the registry HKey_CURRENT･Microsoft･Windows･CurrentVersion･Policies･NoDriveTypeAutoRun key

data to "1".

To return to the original setting, use the registry editor (Regiedit.exe) command to change the key data.

Note:  The registry holds important system functions. Modifying the registry may result in a malfunction of the system. Always back up the registry before making any changes.


The Cancel button

Allows you to exit the setting dialog without executing any setting changes.

Pressing this button also allows you to cancel any changes you have already made.

However, please note that if you press the Apply button the changes cannot be reversed, so you should always back up the registry before making any changes.


Change Key (Auto Insert Notification)

Executed by changing the registry HKEY_LOCAL_MACHINE\Enum\SCSI\ (varies according to system) \AutoInsertNotification key data to "1".

To return to the original setting, use the registry editor (Regiedit.exe) command to change the key data.

Note:  The registry holds important system functions.  Modifying the registry may result in a malfunction of the system.  Always back up the registry before making any changes.


About the Help button

This button opens the utility's Help file.

To read information on each function of the utility, click the "?" at the top right of the dialog box and select the required control.