I am using Windows XP and have installed a (#DBW1647-U2) external CD-RW/DVD-ROM drive. I have not successfully burned anything. I installed nero6 the cd that came with drive and I now have updated to nero7 demo version. When I try try to burn a audio cd it fails and in the error it says... 1C83-731C-10E5-477X-404C-EXC3-**** Windows XP 5.1 IA32 WinAspi: - NT-SPTI used Nero Version: 7.7.5.1 Internal Version: 7, 7, 5, 1 (Nero Express) Recorder: <DVDRW 16X16X> Version: YTS1 - HA 1 TA 0 - 7.7.5.1 Adapter driver: <USB 2.0> HA 1 Drive buffer : 2048kB Bus Type : via Inquiry data (1) -> ATAPI, detected: ? Connected to MMC as unknown drive with class-nr : 1 Drive is autodetected - recorder class: Std. MMC recorder CD-ROM: <DVDRW 16X16X >Version: YTS1 - HA 1 TA 0 - 7.7.5.1 Adapter driver: <USB 2.0> HA 1 === Scsi-Device-Map === DiskPeripheral : Maxtor 6Y080L0 atapi Port 0 ID 0 DMA: On === CDRom-Device-Map === DVDRW 16X16X E: CDRom0 ======================= AutoRun : 1 Excluded drive IDs: WriteBufferSize: 74448896 (0) Byte BUFE : 0 Physical memory : 509MB (522224kB) Free physical memory: 156MB (160520kB) Memory in use : 69 % Uncached PFiles: 0x0 Use Inquiry : 1 Global Bus Type: default (0) Check supported media : Disabled (0) 12.2.2007 Audio CD 11:22:55 AM #1 Text 0 File SCSIPTICommands.cpp, Line 411 LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL 11:22:55 AM #2 CDADOC -1 File Cdadoc.cpp, Line 1639 Audio item log info: Audio document burn settings: ============================= Burn mode: DAO, CD Text: On, Cache disk or network files: No, Cache small files: No, Cache files smaller than 65536 bytes. Audio Multisession: No List of audio tracks: ===================== I omitted the track info 11:22:55 AM #3 Text 0 File Burncd.cpp, Line 3163 DVDRW 16X16X Super Link activated 11:22:55 AM #4 Text 0 File AudioCompilationImpl.cpp, Line 838 DRM: StartDrmRecording(RealRec:1, ImageRec:0, Copies:1) DRM: Beginning burn process. 11:22:55 AM #5 Text 0 File Burncd.cpp, Line 3465 Turn on Disc-At-Once, using CD-R/RW media 11:22:56 AM #6 Text 0 File DlgWaitCD.cpp, Line 306 Last possible write address on media: 359848 ( 79:59.73) Last address to be written: 344123 ( 76:30.23) 11:22:56 AM #7 Text 0 File DlgWaitCD.cpp, Line 318 Write in overburning mode: NO 11:22:56 AM #8 Text 0 File DlgWaitCD.cpp, Line 2912 Recorder: DVDRW 16X16X; CDRW code: 00 97 25 30; OSJ entry from: INFODISC Technology Co., Ltd. ATIP Data: Special Info [hex] 1: D1 00 C6, 2: 61 19 1E (LI 97:25.30), 3: 4F 3B 4A (LO 79:59.74) Additional Info [hex] 1: 02 4C B0, 2: 5C D8 36, 3: 00 80 80 (invalid) 11:22:56 AM #9 Text 0 File DlgWaitCD.cpp, Line 490 >>> Protocol of DlgWaitCD activities: <<< ***Omitted more track info 11:22:56 AM #12 Text 0 File SCSIPTICommands.cpp, Line 209 SPTILockVolume - completed successfully for FCTL_LOCK_VOLUME 11:22:56 AM #13 Phase 36 File dlgbrnst.cpp, Line 1760 Burn process started at 4x (600 KB/s) 11:22:56 AM #14 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 0 (relocatable, no disc pos, no patch infos, orig at #0): write at #0 11:22:56 AM #15 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 1 (relocatable, no disc pos, no patch infos, orig at #0): write at #4728 11:22:56 AM #16 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 2 (relocatable, no disc pos, no patch infos, orig at #0): write at #9719 11:22:56 AM #17 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 3 (relocatable, no disc pos, no patch infos, orig at #0): write at #14902 11:22:56 AM #18 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 4 (relocatable, no disc pos, no patch infos, orig at #0): write at #21258 11:22:56 AM #19 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 5 (relocatable, no disc pos, no patch infos, orig at #0): write at #28776 11:22:56 AM #20 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 6 (relocatable, no disc pos, no patch infos, orig at #0): write at #36506 11:22:56 AM #21 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 7 (relocatable, no disc pos, no patch infos, orig at #0): write at #45350 11:22:56 AM #22 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 8 (relocatable, no disc pos, no patch infos, orig at #0): write at #54194 11:22:56 AM #23 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 9 (relocatable, no disc pos, no patch infos, orig at #0): write at #63753 11:22:56 AM #24 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 10 (relocatable, no disc pos, no patch infos, orig at #0): write at #73669 11:22:56 AM #25 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 11 (relocatable, no disc pos, no patch infos, orig at #0): write at #83712 11:22:56 AM #26 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 12 (relocatable, no disc pos, no patch infos, orig at #0): write at #94134 11:22:56 AM #27 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 13 (relocatable, no disc pos, no patch infos, orig at #0): write at #104563 11:22:56 AM #28 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 14 (relocatable, no disc pos, no patch infos, orig at #0): write at #115106 11:22:56 AM #29 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 15 (relocatable, no disc pos, no patch infos, orig at #0): write at #125784 11:22:56 AM #30 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 16 (relocatable, no disc pos, no patch infos, orig at #0): write at #136582 11:22:56 AM #31 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 17 (relocatable, no disc pos, no patch infos, orig at #0): write at #147828 11:22:56 AM #32 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 18 (relocatable, no disc pos, no patch infos, orig at #0): write at #159088 11:22:56 AM #33 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 19 (relocatable, no disc pos, no patch infos, orig at #0): write at #170370 11:22:56 AM #34 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 20 (relocatable, no disc pos, no patch infos, orig at #0): write at #182151 11:22:56 AM #35 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 21 (relocatable, no disc pos, no patch infos, orig at #0): write at #194071 11:22:56 AM #36 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 22 (relocatable, no disc pos, no patch infos, orig at #0): write at #206969 11:22:56 AM #37 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 23 (relocatable, no disc pos, no patch infos, orig at #0): write at #219904 11:22:56 AM #38 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 24 (relocatable, no disc pos, no patch infos, orig at #0): write at #233021 11:22:56 AM #39 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 25 (relocatable, no disc pos, no patch infos, orig at #0): write at #246138 11:22:56 AM #40 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 26 (relocatable, no disc pos, no patch infos, orig at #0): write at #259257 11:22:56 AM #41 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 27 (relocatable, no disc pos, no patch infos, orig at #0): write at #272923 11:22:56 AM #42 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 28 (relocatable, no disc pos, no patch infos, orig at #0): write at #286589 11:22:56 AM #43 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 29 (relocatable, no disc pos, no patch infos, orig at #0): write at #300641 11:22:56 AM #44 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 30 (relocatable, no disc pos, no patch infos, orig at #0): write at #314785 11:22:56 AM #45 Text 0 File ThreadedTransferInterface.cpp, Line 2764 Verifying disc position of item 31 (relocatable, no disc pos, no patch infos, orig at #0): write at #329327 11:22:56 AM #46 Text 0 File MMC.cpp, Line 17582 StartDAO : CD-Text - On 11:22:56 AM #47 Text 0 File MMC.cpp, Line 22250 Set BUFE: Super Link -> ON , Adapt writespeed to disc : ON 11:22:57 AM #48 Text 0 File MMC.cpp, Line 17812 CueData, Len=528 21 00 00 41 00 00 00 00 21 01 00 00 00 00 00 00 21 01 01 00 00 00 02 00 21 02 00 00 00 01 03 03 21 02 01 00 00 01 05 03 21 03 00 00 00 02 09 2c 21 03 01 00 00 02 0b 2c 21 04 00 00 00 03 12 34 21 04 01 00 00 03 14 34 21 05 00 00 00 04 2b 21 21 05 01 00 00 04 2d 21 21 06 00 00 00 06 17 33 21 06 01 00 00 06 19 33 21 07 00 00 00 08 06 38 21 07 01 00 00 08 08 38 21 08 00 00 00 0a 04 32 21 08 01 00 00 0a 06 32 21 09 00 00 00 0c 02 2c 21 09 01 00 00 0c 04 2c 21 0a 00 00 00 0e 0a 03 21 0a 01 00 00 0e 0c 03 21 0b 00 00 00 10 16 13 21 0b 01 00 00 10 18 13 21 0c 00 00 00 12 24 0c 21 0c 01 00 00 12 26 0c 21 0d 00 00 00 14 37 09 21 0d 01 00 00 14 39 09 21 0e 00 00 00 17 0e 0d 21 0e 01 00 00 17 10 0d 21 0f 00 00 00 19 22 38 21 0f 01 00 00 19 24 38 21 10 00 00 00 1b 39 09 21 10 01 00 00 1b 3b 09 21 11 00 00 00 1e 15 07 21 11 01 00 00 1e 17 07 21 12 00 00 00 20 33 03 21 12 01 00 00 20 35 03 21 13 00 00 00 23 15 0d 21 13 01 00 00 23 17 0d 21 14 00 00 00 25 33 2d 21 14 01 00 00 25 35 2d 21 15 00 00 00 28 1c 33 21 15 01 00 00 28 1e 33 21 16 00 00 00 2b 07 2e 21 16 01 00 00 2b 09 2e 21 17 00 00 00 2d 3b 2c 21 17 01 00 00 2e 01 2c 21 18 00 00 00 30 34 04 21 18 01 00 00 30 36 04 21 19 00 00 00 33 2e 47 21 19 01 00 00 33 30 47 21 1a 00 00 00 36 29 3f 21 1a 01 00 00 36 2b 3f 21 1b 00 00 00 39 24 39 21 1b 01 00 00 39 26 39 21 1c 00 00 00 3c 26 49 21 1c 01 00 00 3c 28 49 21 1d 00 00 00 3f 29 0e 21 1d 01 00 00 3f 2b 0e 21 1e 00 00 00 42 30 29 21 1e 01 00 00 42 32 29 21 1f 00 00 00 45 39 0a 21 1f 01 00 00 45 3b 0a 21 20 00 00 00 49 0b 02 21 20 01 00 00 49 0d 02 01 aa 01 01 00 4c 1e 18 11:27:01 AM #49 SPTI -600 File SCSIPassThrough.cpp, Line 179 CdRom0: SCSIStatus(x00) WinError(121) NeroError(-600) Sense Key: 0x00 (KEY_NO_SENSE) Sense Code: 0x00 Sense Qual: 0x00 CDB Data: 0x2A 00 00 00 06 03 00 00 1B 00 00 00 Sense Area: 0x00 00 00 00 00 00 00 00 00 00 00 00 00 Buffer x08ca0e80: Len xf810 0xA2 FC C6 FC 35 FD 43 FD 70 FD 62 FD 4D FD 26 FD 0x8C FD 54 FD 20 FE E7 FD 63 FF 38 FF 39 01 2B 01 0x20 02 34 02 C9 01 FB 01 F7 00 3E 01 32 00 7E 00 11:27:01 AM #50 CDR -600 File Writer.cpp, Line 301 Device not available E: DVDRW 16X16X 11:31:10 AM #51 Phase 38 File dlgbrnst.cpp, Line 1760 Burn process failed at 4x (600 KB/s) 11:31:11 AM #52 Text 0 File AudioCompilationImpl.cpp, Line 863 DRM: DRM burn session terminated. 11:31:11 AM #53 Text 0 File AudioCompilationImpl.cpp, Line 892 DRM: Closing entire DRM handling. Bye. 11:31:12 AM #54 Text 0 File SCSIPTICommands.cpp, Line 254 SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME 11:31:14 AM #55 Text 0 File Cdrdrv.cpp, Line 10529 DriveLocker: UnLockVolume completed 11:31:14 AM #56 Text 0 File SCSIPTICommands.cpp, Line 411 UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL Existing drivers: Registry Keys: HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option) ********************************************************** And when i try to burn a dvd this is part of what the error log says . Burn process started at 8x (11,080 KB/s) [02:57:25] DVDEngine BEGIN: VMGM_VOBS - Write [02:57:25] DVDEngine ...RBP=0, count=122,880 Bytes [02:57:25] DVDEngine ...succeeded [02:57:25] DVDEngine END: VMGM_VOBS - Write [02:57:25] DVDEngine BEGIN: VTSTT_VOBS#1 - Write [02:57:25] DVDEngine ...RBP=0, count=1,073,739,776 Bytes [03:00:37] GCHW FATAL: Unexpected DllCanUnloadNow()! 1 objects still exist. Dumping memory info********************************************************** Any attemp to burn an audio cd or dvd with operating system using windows media fails as well as attemps with other cd burning software.DRIVE TEST GIVES THIS ERROR MSG NERO CD/DVD SPEED INVALID ADDRESS FOR WRITE (052102) I HOPE THAT I HAVE COMMUNICATED MY ISSUE TO U CLEARLY.IF U NEED THE ENTIRE ERROR LOG FROM NERO LET ME KNOW.