My NU dvdr/cdrw drive was working perfectly fine not too long ago. i had it hooked up with my other cdrw drive and i would use both of them. til one day the cdrw stopped working so i took it out, now the dvdr works but it wont read any regular cds.. only dvds work and that only works at half the speed.. even when i copy a cd it takes forever to copy.. i think my read speed is supposed to be 16x, the write speed is 8x and the rewrite speed is 4x.. but for some reason i can only burn at 4x or i get write errors.. im not sure what the problem is, i looked on the NU site for udated versions of their firmware but those didnt help either.. still have the same problems.. i am using windows xp with sp2 installed.. i am also using nero 6.6 and dvdshrink,(by the way i tried uninstalling all burning software and reinstall and still didnt work) i have 1gig ddr memory and a 2.2gighz processor... i shouldnt be having these problems since i recently upgraded to all of this.. tell me what i might be doing wrong.. thanks

My first suspicion is that you don't have DMA available or enabled.

If you have Nero, use the Nero Info Tool in the Nero Toolkit and check your system.

If you don't it's a free download.

hmmm.. ok... i will check that.. thanks i will post back if any other problems occur.. thank insomniac

well i used the nero infotool and this is what i got out of it..


Nero InfoTool 2.27

Drive Information
------------------
Drive : NU DVDRW DDW-081
Type : DVD+R/RW Recorder
Firmware Version : BX03
Buffer Size : 2 MB
Date : ?
Serial Number : TEMP_TV007_T7013
Vendor Specific :
Drive Letter : E:\
Location : 1:0
Mechanism : Tray
Read Speed : 8.0 , 6.0 , 4.0 X
Write Speed : 48 X

Read CD Text : Yes
Return C2 Pointers : No
Read CD-R : Yes
Read CD-RW : Yes
Read DVD-ROM : Yes
Read DVD-RAM : No
Read DVD-R : Yes
Read DVD-RW : Yes
Read DVD+R : Yes
Read DVD+RW : Yes
Read DVD+R DL : No
Read Digital Audio : Yes
Read CD+G : Yes
Read VideoCD : Yes

Write CD-R : Yes
Write CD-RW : Yes
Write DVD-R : No
Write DVD-RW : No
Write DVD+R : Yes
Write DVD+RW : Yes
Write DVD+R DL : No
Write DVD-RAM : No
Buffer Underrun Protection : Yes
Mount Rainier : No
Modes : Packet, TAO, DAO, SAO, RAW SAO, RAW SAO 16, RAW SAO 96, RAW DAO 16, RAW DAO 96

Region Protection Control : RPC II
Region : 1
Changes User : 4
Changes Vendor : 4

Drive Information
------------------
Drive : Generic DVD-ROM
Type : DVD-ROM Drive
Firmware Version : 1.0
Buffer Size : 512 KB
Date : ?
Serial Number
Vendor Specific : týH
÷âÔw�d
Drive Letter : F:\
Location : 2:0
Mechanism : Tray
Read Speed : 32 , 8 X
Write Speed : n/a

Read CD Text : Yes
Return C2 Pointers : Yes
Read CD-R : Yes
Read CD-RW : Yes
Read DVD-ROM : Yes
Read DVD-RAM : Yes
Read DVD-R : Yes
Read DVD-RW : Yes
Read DVD+R : Yes
Read DVD+RW : Yes
Read DVD+R DL : No
Read Digital Audio : Yes
Read CD+G : Yes
Read VideoCD : Yes

Write CD-R : No
Write CD-RW : No
Write DVD-R : No
Write DVD-RW : No
Write DVD+R : No
Write DVD+RW : No
Write DVD+R DL : No
Write DVD-RAM : No
Buffer Underrun Protection : No
Mount Rainier : No
Modes : n/a

Region Protection Control : RPC II
Region : None
Changes User : 5
Changes Vendor : 4

Disc Information (F:\)
-------------------
Type : Data CD (Mode 2)
Capacity : 78:30.48 (690 MB)
Tracks : 2
Sessions : 1

File System : ISO9660
Title : STN
Date : 14 July 1978
Publisher : n/a
Application : n/a


Drive Information
------------------
Drive : Generic DVD-ROM
Type : DVD-ROM Drive
Firmware Version : 1.0
Buffer Size : 512 KB
Date : ?
Serial Number
Vendor Specific : týH
÷âÔw�d
Drive Letter : G:\
Location : 2:1
Mechanism : Tray
Read Speed : 8 X
Write Speed : n/a

Read CD Text : Yes
Return C2 Pointers : Yes
Read CD-R : Yes
Read CD-RW : Yes
Read DVD-ROM : Yes
Read DVD-RAM : Yes
Read DVD-R : Yes
Read DVD-RW : Yes
Read DVD+R : Yes
Read DVD+RW : Yes
Read DVD+R DL : No
Read Digital Audio : Yes
Read CD+G : Yes
Read VideoCD : Yes

Write CD-R : No
Write CD-RW : No
Write DVD-R : No
Write DVD-RW : No
Write DVD+R : No
Write DVD+RW : No
Write DVD+R DL : No
Write DVD-RAM : No
Buffer Underrun Protection : No
Mount Rainier : No
Modes : n/a

Region Protection Control : RPC II
Region : None
Changes User : 5
Changes Vendor : 4

Disc Information (G:\)
-------------------
Type : DVD-ROM
Capacity : 1.63 GB
Layers : 1
Version : 1
Disc Size : 12 cm

File System : ISO9660, Joliet
Title : Vietnam
Date : 2 September 2004
Publisher : n/a
Application : NERO BURNING ROM


Interface Information
---------------------
Adapter 1
---------
Description : Primary IDE Channel

Driver
Description : System32\DRIVERS\atapi.sys
Company : n/a
Version : n/a
Description : n/a

Attached Devices
Description : Master: WDC WD800BB-00CAA1
Type : Disk Drive
DMA : On

Adapter 2
---------
Description : Secondary IDE Channel

Driver
Description : System32\DRIVERS\atapi.sys
Company : n/a
Version : n/a
Description : n/a

Attached Devices
Description : Master: NU DVDRW DDW-081
Type : CD-Rom Drive
DMA : On
Autorun : On

Adapter 3
---------
Description : D346PRT SCSI Controller

Driver
Description : System32\Drivers\d346prt.sys
Company :
Version : 3.46.0.0 built by: WinDDK
Description : SCSI miniport

Attached Devices
Description : ID 0 (0): Generic DVD-ROM 1.0
Type : CD-Rom Drive
Autorun : On
Description : ID 1 (0): Generic DVD-ROM 1.0
Type : CD-Rom Drive
Autorun : On


Software Information
--------------------
Operating System : Windows XP Home Edition (5.01.2600 Service Pack 2)
DirectX : DirectX 9.0c

Description : Nero Burning ROM
Version : 6, 6, 0, 1
Company : Ahead Software AG
Version Check : Ok

Description : Nero StartSmart
Version : 2, 0, 0, 2
Company : Ahead Software AG

Description : NeroVision
Version : 3,0,1,4
Company : Ahead Software AG

Description : Nero ShowTime
Version : 2, 0, 0, 13
Company : Ahead software AG

Description : Nero Recode 2
Version : 2, 1, 1, 24
Company : Ahead Software AG

Description : Cover Designer
Version : 2, 3, 0, 15
Company : Ahead Software AG

Description : Nero BackItUp Application
Version : 1, 2, 0, 27
Company : Ahead Software AG

Description : PowerDVD
Version : 4.0.1015
Company : CyberLink Corp.

Description : Sonic MyDVD
Version : 4.5
Company : Sonic Solutions

Description : SnagIt Studio
Version : 7.0.2.0
Company : TechSmith Corporation


Hardware Information
--------------------
CPU : Intel Pentium 4 2200 MHz
Bus Speed : 100 MHz
Motherboard : P4X400-8235
System : VIA P4X400-8235
BIOS : Phoenix 6.00 PG
Memory : 1024 MB (60ns)
Sound : C-Media Wave Device
Video : RADEON 9600 SERIES


Upper Filters
-------------
Driver : Cdralw2k
Description : CDRAL for Windows 2000 Kernel Driver
Version : 7.0.0.162
Company : Roxio

Video Codecs
------------
Cinepak Codec by Radius : 1.10.0.11
Intel 4|2|0 Video V2.55.016 : V2.55.016
Intel Indeo(R) Video R3.2
Intel Indeo(R) Video R3.2
Intel IYUV codec : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
Microsoft RLE : 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)
Microsoft Video 1 : 5.1.2600.0 (xpclient.010817-1148)
Microsoft YUV : 5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)
Microsoft YUV : 5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)
Toshiba YUV Codec : 5.1.2600.0 (XPClient.010817-1148)
Microsoft YUV : 5.3.2600.2180 (xpsp_sp2_rtm.040803-2158)
Microsoft H.263 Video Codec : 5.1.2600.2180
Microsoft H.261 Video Codec : 5.1.2600.2180
Indeo® video 5.10 : R.5.10.15.2.55
Intel Indeo® Video 4.5 : 4.51.16.03
Intel I.263 Video Driver 2.55.016 : V2.55.016
DivX Pro 5.0.2 Codec : 4, 0

Audio Codecs
------------
Microsoft IMA ADPCM CODEC : 4.00.0.0
Microsoft ADPCM CODEC : 4.00.0.0
Microsoft CCITT G.711 A-Law and u-Law CODEC : 4.00.0.0
Microsoft GSM 6.10 Audio CODEC : 4.00.0.0
DSP Group TrueSpeech(TM) Software CODEC : 1.00.0.0
Microsoft G.723.1 CODEC : 1.02.0.1
Windows Media Audio : 4.02.0.0
Sipro Lab Telecom ACELP.net audio codec : 3.02.0.0
Fraunhofer IIS MPEG Layer-3 Codec (advanced) : 1.09.1.49
LAME MP3 Codec v0.9.0 - 3.93 (stable) : 4.00.0.0
Microsoft PCM Converter : 5.00.0.0


ASPI Information
----------------
System ASPI : ASPI is not installed

Nero ASPI : ASPI is installed and working properly

WNASPI32.DLL : 2.0.1.68 160016 bytes July 28, 2004

Installed OS Patches
--------------------
(Q810090) USB Update : Yes
(Q329112) Multi-Border DVD with More Than 4 GB of Data Not Readable Past First Border : Yes
(Q812415) Problems with Multiple ATA devices : No
(Q322359) Intelide.sys Is Not Used on Computers with ICH4 or ICH5 : No
(Q320174) IMAPI Update - CDs recorded have missing files or errors : Yes
(Q311542) Devices May not power up properly when resuming from standby : Yes
(Q327086) Data Added to Removable Media During Hibernation May Be Lost When You Resume Windows XP : Yes
(Q308374) Ricoh 1394 Controller May Not Work with Windows XP : No
(Q314634) Windows XP Does Not Detect Your New USB Device : Yes
(Q822603) USB 1.1 and USB 2.0 update : No
(Q323507) Your IEEE 1394 or USB CD-ROM or DVD-ROM Drive May Not Be Recognized in Windows XP : No
(Q815834) 'Code 28' Error Message and a Yellow Exclamation Mark Next to a USB Device in Device Manager After Your Computer Resumes from Hibernation : No
(Q316575) Problems When You Swap a CD-ROM During Hibernation in Windows XP : No
(Q811789) Surprise Removal of 1394 Device Can Cause Bluescreen Error : No
(Q323322) Cannot Use Sony VAIO PCG-C1MRX Internal Camera with Windows Messenger After You Apply Q316397 : No
(Q811789) Surprise Removal of 1394 Device Can Cause Bluescreen Error : No

I can't really see anything technically wrong by studying the Info Tool log.

DMA is enabled, however, you seem to have a lot of drives installed.

How many physical drives do you have?

Try not to use virtual drives as they can screw your system up.

Uninstall all the drives you don't need or use, and have just your NU DVDR/W as a Master on the 2nd controller.

Check in My Computer that it's the only drive listed (apart from your hard drive and floppy etc off course) and that it has the correct drive letter and try it on it's own.

ok.. i took out the virtual drives i had there.. and now my NU drive is the only one.. but it still doesnt work correctly.. same exact thing.. any other suggestions? i am truly greatful for any help

What I think has happened is burning software and/or virtual drives have screwed up your settings or Registry.

There is a Registry hack you can try, but leave that as a last resort.

How many drives are listed in My Computer and in Device Manager?

Have only the NU unit physically installed and then try uninstalling all your optical drives (Remove all virtual drives too) including the NU and reboot.

Let Windows detect it on the reboot and install the relevant files.

Check Device Manager and make sure that it's listed with no errors and DMA is enabled.

Try disabling one of the drives (like the cdrw) through device manager. This returned functionality to my dvd rw. Still working on a solution that will allow me to use both.