Hitachi DVD-ROM Drives

Playing DVDs

The playing of DVD movies is totally controlled by the player software and the MPEG decoder card. You will need both of them to successfully play a DVD movie. Hitachi only manufactures the drive and sells it on an OEM basis. If what you need to play the movies is not there, you will need to contact the company you purchased the drive from to get it. If that is not possible, you can contact Sigma Designs at 1-800-845-8086 or 1-510-770-0100.

System freezing

First verify that the drive is working properly by doing a directory listing of the DVD disc in Windows Explorer. If you see the directory on the disc, the drive is working properly. The problem is caused by the DVD Player software.


There are two types of security on a DVD movie disc. Copy Protection and Regional Coding. Both of these are required by the movie industry to protect their copy rights and to restrict which regions of the planet certain movies are released. Some movies can only be released in certain parts of the world or they can only be released on specific dates. You will only be able to play movies that are purchased in your region. This is not controlled at this time by the DVD drive that you have, although it will be in future models. It is controlled by the player software and the Mpeg card that you have in your PC. There is no way to change that.

Hewlett Packard Info

Upgrading from Windows 95 to Windows 98 or Windows 98 Second Edition on an HP Pavilion PC (including upgrade to Internet Explorer 5.x) can result in errors. In addition, installation of some SCSI/SCSI-emulating devices can result in one of the following situations:

When playing DVD movies or CDs

Could not authenticate disk 0

An hourglass while playing DVD movies

DVD movie might not get past the copyright screen

CDRW cannot initialise direct CD (might occur during system boot)

Not all CD changer slots available

Definitions applicable to this document

SCSI: Small Computer System Interface.

IDE: Integrated Drive Electronics (HP Pavilion PCs utilise the IDE functionality).

SCSI Emulating: This occurs when a device is an IDE or a SCSI device that uses the SCSI interface (ASPI Layer) to communicate between a device which operates like a SCSI device yet is connected to an IDE system, such as an HP Pavilion PC.

ASPI Layer: Advanced SCSI Protocol Interface. An interface standard developed by Adaptec Inc. that has become one of the major SCSI interface standards for computers. HP Pavilion PCs ship with Adaptec Inc. ASPI Layer for SCSI emulation. This allows SCSI and/or SCSI emulating devices to interact with an IDE system and/or other devices.

Examples of SCSI/SCSI-emulating devices

HP PhotoSmart Photo Scanner

Mitsumi CD-ROM recorder

HP CD-Writer 7110e (some other models)

ZIP Drives connecting to an LPT (printer) port

Scanners connecting to an LPT (printer) port

This is not an all-inclusive list. Refer to the product specifications for devices being added to determine if it is SCSI or SCSI-emulating.
The upgrade of Windows 98 and/or upgrade to Internet Explorer 5.x can also result in this issue.


SCSI/SCSI-emulating software, such as that which comes with scanner devices and some models of CDR and CDRWs, downloads an ASPI Layer during the first part of the installation process. This creates a backup for the APIX.VXD and the WINASPI.DLL files (ASPI Layer files). These files are then replaced with changed files that might not be compatible with different pieces of hardware. Likewise, the update for operating system software such as Windows 98 Second Edition with Internet Explorer 5.x can change these files resulting in compatibility issues between devices.


Download and run the file ASPICHK.EXE (a utility that detects and lists the current version of the ASPI Layer) from Adaptec's Web site. After verifying version information, if needed upgrade the ASPI Layer with the latest version of ASPI (ASPI32.EXE) created by Adaptec. Follow the instructions below.

Updating the ASPI Layer

Access the Adaptec Web download site at

Locate ASPICHK.EXE. Double-click and follow instructions to download and run the utility. The ASPI Installation Verification window will appear. If the file versions listed are earlier versions than listed for ASPI32.EXE on the Adaptec Web site, or if a conflict is indicated, continue with the steps below.

Locate ASPI32.EXE. Double-click to install.

Follow the instructions on the download wizard screens.

Verify all devices are working properly. ASPICHK.EXE can also be used to verify that the ASPI layer has been updated.

NOTE: If any devices are still not working, conflicting or unnecessary ASPI files may still be on the system in directories where they are not needed.

Deleting unneeded ASPI files from other locations

Choose Start, Find, Files or Folders. In Named, type: WNASPI32.DLL

The correct directory location for this file is C:\WINDOWS\SYSTEM. If this file is found in any other directories, delete the file (do not delete the directories, delete only the WNASPI32.DLL file occurring in these other directories).

NOTE: Do not delete the WNASPI32.DLL file from the C:\Windows directory or any of the Windows subdirectories (for example C:\Windows\System).

Choose Start, Find, Files or Folders. In Named, type: APIX.VXD

The correct directory location for this file is C:\WINDOWS\SYSTEM\IOSUBSYS. If this file is found in any other directories, delete the file (do not delete the directories, delete only the APIX.VXD file occurring in these other directories).

NOTE: Do not delete the APIX.VXD file from the C:\Windows directory or any of the Windows subdirectories (for example C:\Windows\System).

Choose Start, Find, Files or Folders. In Named type: WINASPI.DLL

The correct directory location for this file is C:\WINDOWS\SYSTEM. If this file is found in any other directories, delete the file (do not delete the directories, delete only the WINASPI.DLL file occurring in these other directories).

NOTE: Do not delete the WINASPI.DLL file from the C:\Windows directory or any of the Windows subdirectories (for example C:\Windows\System).

Choose Start, Find, Files or Folders. In Named, type: ASPIENUM.VXD

The correct directory location for this file is C:\WINDOWS\SYSTEM. If this file is found in any other directories, delete the file (do not delete the directories, delete only the ASPIENUM.VXD file occurring in these other directories).

NOTE: Do not delete the ASPIENUM.VXD file from the C:\Windows directory or any of the Windows subdirectories (for example C:\Windows\System).

Choose Start, Shut Down, Restart the Computer.

Once the computer has rebooted, verify all devices are working properly.


This occurs after the ASPI layer is updated. The updated files are causing conflicts with between the DVD Drive, the Scanner, or the CD-ROM. Other devices may also be affected.


ATI DVD Player

In some instances when attempting to launch the ATI DVD Player the following message may appear:

Playback has failed due to one of the following:

Audio device in use

Display overlay not available

Not enough video memory

There are several reasons why this message may be displayed:


The Audio Device is in use

If another application is already using the sound card it is possible that the ATI DVD Player will be unable to correctly access the sound card itself. Try shutting down all other programs and re-run the ATI DVD Player.

Display overlay is not available

Display overlay may be unavailable because:

ATI graphics adapter is a "secondary" display adapter

Overlay, under DirectX, will only be available on the primary display adapter under Windows 98. If the graphics card is configured as a secondary adapter then the overlay feature required by the ATI DVD Player will not be available.

To correct this the ATI graphics card must be configured as the primary display adapter when running the ATI DVD Player.

Another application is already using overlay

If another application is already running which makes use of overlay then the overlay feature of the graphics card will also not be available for use by the ATI DVD Player.

Common types of applications, which may use or prevent access to overlay, are:

Please close the application using overlay and then re-launch the ATI DVD Player. In some instances Windows may need to be re-started prior to attempting to re-launch the ATI DVD Player in order to ensure that the overlay becomes available for use.

Not enough video memory

If the resolution/colour depth selected is set too high there may be insufficient free memory on the graphics card. Try lowering the resolution/colour depth selected in Windows and re-launch the ATI DVD Player.

Incorrect version of DirectX

When using the ATI DVD Player DirectX version 6 (or higher) should be installed on the system. Current versions of DirectX are available from the Microsoft web site. The URL is:

NOTE: Windows 98 SE comes with DirectX 6.1.

DirectX feature support is disabled

Some versions of DirectX allow the user to disable the DirectDraw hardware interface as a troubleshooting step. Use the DXDIAG utility to verify that DirectDraw hardware acceleration is enabled:

Launch DXDIAG and ensure that the options for DirectDraw and Direct3D acceleration are enabled under the Display tab. To launch DXDIAG by selecting clicking START then RUN on the Windows taskbar. Enter DXDIAG.EXE on the OPEN line and then click OK.

NOTE: If DXDIAG is not present on your system then DirectX 6 or higher should be re-installed.

AGP aperture setting (in CMOS) is incorrect

When using an AGP graphics adapter the AGP aperture size settings should be set to "default" in the system CMOS setup. If a "default" option is not available try selecting 64M as the AGP aperture size setting.

Please see the documentation for your motherboard for specific details on accessing the CMOS setup.

IRQ not allocated to the graphics card

Most current systems provide an "Assign IRQ to VGA adapter" option in the CMOS setup. This setting should be enabled to ensure correct operation of the ATI DVD Player.

Note: The specific wording for this option will vary depending on the specific system BIOS used. Please consult the documentation for your motherboard for details on the specific name of options in the CMOS setup.


Hangs, IPF or GPF playing a DVD movie with ATI DVD Player

If the system does not actually hang it may simply be having problems accessing the DVD ROM drive or reading the DVD disk in the drive and this may lead to subsequent error messages such as one of the following:

This issue can occur if there is a problem with the configuration of the graphics card or DVD ROM drive.

Please try the following:

Ensure that an IRQ is enabled for the ATI graphics card

Current ATI display adapters require an IRQ. Under normal conditions, IRQs are assigned to PCI and AGP devices "automatically" by the Plug and Play system BIOS. However, many system setup (CMOS) programs allow the user to manually assign specific resources (including IRQs) to particular devices or particular slots. Additionally, some older ATI graphics cards will provide a jumper on the card itself to control the enabling of an IRQ.

To determine whether an IRQ is enabled

You can determine whether an IRQ has been assigned to the board using the Windows Device Manager:


If you don't see an "Interrupt Request" in the resource list...

If you are using an ATI graphics card that provides an IRQ jumper (some Rage PRO and Rage LT PRO boards), ensure that the jumper is set to the enabled position.

Examine the board, looking for a three-pin jumper labelled "INT". In most cases, the jumper looks something like this:

0 0 0

The pins (and the labels) may appear in different orientations, depending on the exact layout of your ATI board.

To enable an IRQ for the display adapter, place a "jumper block" across the two pins on the "ENA" (enabled) side.

If your card does not provide an IRQ jumper, or if the IRQ jumper is already enabled, enter your CMOS setup utility at boot time and check for manual IRQ settings.

Many CMOS setup utilities have an option to "Assign IRQ for VGA". Ensure that this is ENABLED.

Additionally, some CMOS utilities provide a method of allocating specific IRQs to certain slots. These values should be set to AUTO (unless you have a good reason for making a manual assignment).

Some early system BIOS may not properly handle PCI IRQ allocation. Please check with the system (or mainboard) manufacturer for an updated system BIOS.

Check for a Resource Conflict with the IRQ assigned to the graphics card:

In Device Manager, open the Resources display for your graphics card (see above for steps). Highlight the Interrupt Request resource by clicking it once. Check the "Conflicting device list" at the bottom of the properties page.

If you see a conflict with another hardware device, you will need to determine the source of the conflict and correct it.

Conflicts are typically the result of system or adapter configuration.

PCI devices are normally configured automatically during system boot. If both of the items involved in a conflict are PCI peripherals, check the system setup (CMOS) for IRQ settings.

If one or both of the conflicting devices are ISA cards, you may need to configure them manually, using jumpers and switches, or with a configuration program. Consult the documentation for the affected devices.

Another troubleshooting option is to shutdown Windows, physically remove the conflicting device from the system, and restart. If the error disappears, you have isolated the source.


Note for Windows 95 Users:

If you are using Windows 95 with an AGP graphics card you may see a resource conflict message regarding the AGP or PCI bridge. This is normal, and does not need to be corrected.


Use Device Manager to examine (and change) the settings for the DVD ROM Drive

By default, DMA should be enabled when using a DVD ROM drive. Check the settings for DMA in Device Manager and try toggling this option:

If disabling DMA corrects the issue, the issue may lie with the system configuration.


Remove and re-install the ATI display drivers and DVD software

If the above steps do not correct the problem, try removing and re-installing all of the relevant software, as follows.

Before you begin this procedure, ensure that you have access to the installation disks or download files required to re-install the software.

1. Remove the following pieces of software, using Add/Remove Programs in Control Panel. Restart the system after each component is removed:

A restart of the system may be necessary after each component is removed.

2. Re-install the ATI display driver. Restart the system as prompted.

3. Use the "Settings" tab in Display Properties (from Control Panel) to configure the system for 800x600, High Colour (16 bit), and apply this change.

4. Re-install the ATI DVD Software.

Test the problem.

If the issue is resolved at this point, you can re-load the remaining software. It is a good idea to re-test the issue after each addition, to ensure that the system continues to function as expected.

Authentication/Region error playing DVD with SoftDVD

An "Authentication Error" is reported when attempting to play a DVD movie using the ATI-bundled Zoran SoftDVD player. The error suggests that the player software does not support the region code on the DVD disk.

This error normally occurs when the DVD disk is designed for a different region than the player being used. The error message would appear, for instance, when attempting to play a "region 2" DVD disk on a "region 1" version of SoftDVD software.

However, ATI Technical Support has received reports of this error occurring in situations where the DVD region codes are correct.

At present there does not appear to be a single common cause for this problem. ATI Technical Support is tracking Customers who experience this issue, and attempting to determine the factors involved.

The following suggestions are derived from the troubleshooting tips provided with the Zoran SoftDVD player:

1. Ensure that the DVD title being played is designed for the appropriate region. At present the SoftDVD player offered by ATI is designed for the playback of region 1 DVD titles.

2. If using SoftDVD with a SCSI DVD drive, ensure that the most recent ASPI driver is installed for the SCSI controller.

3. Panasonic A01 F/W 1.12 DVD drives will yield authentication errors when attempting to play DVDs using SoftDVD. This appears to be an issue with the DVD drive itself and no solution exists.

4. Toshiba SM-M1002 drives using a firmware version prior to 3426 should be updated to the current firmware revision.

5. For Matsushita SR-852 drives, the following DVD-ROM driver files should be used:

Mkeatapi.mpd - on the SR-8582 installation disk

Mkevsd.vxd - on the SR-8582 installation disk

Mkeupd.vxd - on the SR-8581 installation disk


Windows 98 system locks or reboots running Zoran SoftDVD Player for Windows 95

In most cases, the system locks immediately after clicking the PLAY button. It may also occur at other points within the Zoran SoftDVD software. In some instances, the system may REBOOT or report an "Unrecoverable Application Error".

This problem has been reported to occur most often with the Windows 98 Bundled Drivers, but it can also occur when the version 5.00 or 5.11 ATI drivers for Windows 95 are installed into Windows 98.

In some cases, the SoftDVD Player may successfully play a single DVD movie or file, and then report an error such as "your computer is not configured to start DVD" when attempting to play a second movie.

Note that the Zoran SoftDVD Player was written and optimised specifically for Windows 95. While features and performance of this software cannot be guaranteed in Windows 98, it is expected that the application will FUNCTION in most cases.

Try the following:

Web address