OK,I think more info about my hardware info may help more.
Bug exists in all two case below.

1st case:

Field Value
Computer
Computer Type ACPI Uniprocessor PC
Operating System Microsoft Windows XP Professional
OS Service Pack Service Pack 3
Internet Explorer 8.0.6001.18702 (IE 8.0)
DirectX 4.09.00.0904 (DirectX 9.0c)
Date / Time 2010-02-25 / 17:20

Motherboard
CPU Type AMD Athlon 64, 2015 MHz (10 x 202) 3200+
Motherboard Name Asus A8N-SLI (3 PCI, 2 PCI-E x1, 2 PCI-E x16, 4 DDR DIMM, Audio, Gigabit LAN)
Motherboard Chipset nVIDIA nForce4 SLI, AMD Hammer
System Memory 1024 MB (PC3200 DDR SDRAM)
BIOS Type Award (11/25/05)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display
Video Adapter NVIDIA GeForce 6600 GT (128 MB)
3D Accelerator nVIDIA GeForce 6600 GT PCI-E

Multimedia
Audio Adapter Realtek ALC850 @ nVIDIA nForce4 SLI (CK8-04) - Audio Codec Interface

Storage
IDE Controller Standard Dual Channel PCI IDE Controllers
IDE Controller Standard Dual Channel PCI IDE Controllers
IDE Controller Standard Dual Channel PCI IDE Controllers
Disk Drive ST3160021A (160 GB, 7200 RPM, Ultra-ATA/100)
Disk Drive ST3320620A (320 GB, 7200 RPM, Ultra-ATA/100)
Disk Drive WDC WD10EADS-00M2B0 (931 GB, IDE)
Optical Drive JLMS XJ-HD166S (16x/48x DVD-ROM)
Optical Drive PIONEER DVD-RW DVR-108 (DVD+R9:4x, DVD+RW:16x/4x, DVD-RW:16x/4x, DVD-ROM:16x, CD:32x/24x/40x DVD+RW/DVD-RW)
SMART Hard Disks Status OK

Peripherals
FireWire Controller Texas Instruments TSB43AB22 1394A-2000 OHCI PHY/Link-Layer Controller (PHY: TI TSB41AB1/2)
USB1 Controller nVIDIA nForce4 SLI (CK8-04) - OHCI USB 1.1 Controller
USB2 Controller nVIDIA nForce4 SLI (CK8-04) - EHCI USB 2.0 Controller

DMI
DMI BIOS Vendor Phoenix Technologies, LTD
DMI BIOS Version ASUS A8N-SLI ACPI BIOS Revision 1014
DMI System Manufacturer System manufacturer
DMI System Product System Product Name
DMI System Version System Version
DMI Motherboard Manufacturer ASUSTeK Computer INC.
DMI Motherboard Product A8N-SLI
DMI Motherboard Version 1.XX
DMI Chassis Manufacturer Chassis Manufacture
DMI Chassis Version Chassis Version
DMI Chassis Asset Tag 123456789000
DMI Chassis Type Desktop Case
DMI Total / Free Memory Sockets 4 / 2

2nd case:

Field Value
Computer
Computer Type ACPI x86-based PC
Operating System Microsoft Windows 7 Ultimate
OS Service Pack -
Internet Explorer 8.0.7600.16385
DirectX DirectX 11.0
Date / Time 2010-02-25 / 08:01

Motherboard
CPU Type DualCore Intel Core 2 Duo E7500, 2933 MHz (11 x 267)
Motherboard Chipset Intel Beachwood X38
System Memory 3072 MB
DIMM1: Micron 8HTF12864AY-800J1 1 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz) (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz)
DIMM2: Hynix HYMP112U64CP8-S6 1 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz) (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz)
DIMM3: Hynix HYMP112U64CP8-S6 1 GB DDR2-800 DDR2 SDRAM (6-6-6-18 @ 400 MHz) (5-5-5-15 @ 333 MHz) (4-4-4-12 @ 266 MHz)
BIOS Type Compaq (07/29/09)
Communication Port Communications Port (COM1)
Communication Port ECP Printer Port (LPT1)

Display
Video Adapter ATI Radeon HD 4650 (Microsoft Corporation WDDM 1.1) (256 MB)
Video Adapter ATI Radeon HD 4650 (Microsoft Corporation WDDM 1.1) (256 MB)
3D Accelerator ATI Radeon HD 4650 (RV730)
Monitor Generic PnP Monitor [NoDB] (CNK9330NWH)

Multimedia
Audio Adapter ATI Radeon HDMI @ ATI RV710/730/740 - High Definition Audio Controller
Audio Adapter Realtek ALC262 @ Intel 82801IB ICH9 - High Definition Audio Controller [A-2]

Storage
Storage Controller A0Y14IYK IDE Controller
Storage Controller Intel(R) ICH8R/ICH9R/ICH10R/DO SATA RAID Controller
Disk Drive Hitachi HDP725050GLA360 (500 GB, 7200 RPM, SATA-II)
Optical Drive hp DVD D DH16D5S
Optical Drive JONWTC BO92NGPYJGD SCSI CdRom Device
SMART Hard Disks Status OK

Peripherals
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB1 Controller Intel 82801IB ICH9 - USB Universal Host Controller [A-2]
USB2 Controller Intel 82801IB ICH9 - USB2 Enhanced Host Controller [A-2]
USB2 Controller Intel 82801IB ICH9 - USB2 Enhanced Host Controller [A-2]
USB Device USB Input Device
USB Device USB Input Device

DMI
DMI BIOS Vendor Hewlett-Packard
DMI BIOS Version 786F3 v01.17
DMI System Manufacturer Hewlett-Packard
DMI Motherboard Manufacturer Hewlett-Packard
DMI Motherboard Product 0AA0h
DMI Motherboard Version
DMI Chassis Manufacturer Hewlett-Packard
DMI Chassis Version
DMI Chassis Asset Tag CNG948W08F
DMI Chassis Type Mini Tower
About 2nd case,here is something more from Alcohol's system info
############################ Device(s) List ############################
(G JONWTC BO92NGPYJGD (ajhbj33b, Port 1, Bus 0, Target 0, Lun 0)
hp DVD D DH16D5S (iaStorV, Port 0, Bus 0, Target 0, Lun 0)

##################### Installed Device Drivers List #####################
ACPI.sys aegniuqf.SYS afd.sys AgileVpn.sys ajhbj33b.SYS
Alcoholx.dll amdxata.sys apisetschema.dll atikmdag.sys b57nd60x.sys
Beep.SYS blbdrive.sys BOOTVID.dll bowser.sys CDAC15BA.SYS
cdd.dll cdrom.sys CI.dll CLASSPNP.SYS CLFS.SYS
cng.sys CompositeBus.sys csc.sys dfsc.sys discache.sys
disk.sys drmk.sys Dxapi.sys dxgkrnl.sys dxgmms1.sys
fastfat.SYS fdc.sys fileinfo.sys fltmgr.sys Fs_Rec.sys
fvevol.sys fwpkclnt.sys halmacpi.dll HDAudBus.sys HdAudio.sys
HIDCLASS.SYS HIDPARSE.SYS hidusb.sys HTTP.sys hwpolicy.sys
iaStorV.sys intelppm.sys kbdclass.sys kbdhid.sys kdcom.dll
ks.sys ksecdd.sys ksecpkg.sys lltdio.sys luafv.sys
mcupdate_GenuineIntel.dll monitor.sys mouclass.sys mouhid.sys mountmgr.sys
mpsdrv.sys mrxsmb.sys mrxsmb10.sys mrxsmb20.sys Msfs.SYS
msisadrv.sys msrpc.sys mssmbios.sys mup.sys ndis.sys
ndistapi.sys ndiswan.sys NDProxy.SYS netbios.sys netbt.sys
NETIO.SYS Npfs.SYS nsiproxy.sys ntdll.dll Ntfs.sys
ntkrnlpa.exe Null.SYS pacer.sys parport.sys partmgr.sys
parvdm.sys pci.sys pcw.sys peauth.sys portcls.sys
PSHED.dll rasl2tp.sys raspppoe.sys raspptp.sys rassstp.sys
rdbss.sys rdpbus.sys RDPCDD.sys rdpencdd.sys rdprefmp.sys
rdyboost.sys rspndr.sys SCSIPORT.SYS secdrv.SYS serenum.sys
serial.sys smss.exe spib.sys spldr.sys srv.sys
srv2.sys srvnet.sys swenum.sys tcpip.sys tcpipreg.sys
TDI.SYS tdx.sys termdd.sys TSDDD.dll tunnel.sys
umbus.sys USBD.SYS usbehci.sys usbhub.sys USBPORT.SYS
usbrpm.sys USBSTOR.SYS usbuhci.sys vdrv1000.sys vdrvroot.sys
vga.sys VIDEOPRT.SYS vmstorfl.sys volmgr.sys volmgrx.sys
volsnap.sys vpchbus.sys vpcnfltr.sys vpcusb.sys vpcvmm.sys
wanarp.sys watchdog.sys Wdf01000.sys WDFLDR.SYS wfplwf.sys
win32k.sys wmiacpi.sys WMILIB.SYS WudfPf.sys WUDFRd.sys

################## Detailed Information of Device(s) ##################
///////////////////////////////////////////////////////////////////////
hp DVD D DH16D5S (0:0) detail information.
///////////////////////////////////////////////////////////////////////
Vendor Identification: hp
Product Identification: DVD D DH16D5S
Production Revision Level: VHD7
Location: iaStorV, Port 0, Bus 0, Target 0, Lun 0
-* Note: This information below is provided by the unit, it might be inaccurate. *-
-* This software does not use this information! *-
Removable media: Yes
Version: ATAPI (INF-8090i/INF-8020i/INF-8028i)
Response Data Format: 02h
CD-R & CD-RW Read / Write: CD-R: Yes / No, CD-RW: Yes / No
Read CD-R Fixed Packet: Yes
Test Write: No
DVD-ROM Read: Yes
DVD-R and DVD-RAM Read / Write: DVD-R: Yes / No, DVD-RAM: Yes / No
Audio Play: Yes
Composite Audio and Video Data Stream: No
Digital output (IEC958) on port 1 / 2 Supported: No / No
Mode 2 Form 1 / 2: Yes / Yes
Multi-Session: Yes
BUF: No
CD-DA Commands supported: Yes
CD-DA Stream is Accurate: Yes
R-W Supported: Yes
R-W De-interleaved and Corrected: No
C2 Pointers Support: Yes
ISRC / UPC Supported: Yes / Yes
Read Bar Code: No
Lock media into the drive: Yes
Currently drive Lock state: Unlocked
Prevent Jumper: No
Eject Command: Yes
Separate volume levels: Yes
Separate channel mute: Yes
Changer Supports Disc Present: No
Software slot selection: No
Side change capable: No
P through W in Lead-In: Yes

################################################## #####################