Hi all! New to the forums but have read alot from here for support. Anyways, I recently bought a NEC DVD/CD burner with the Nero 6 OEM software. It burned successfully the first handful of times whether it was a CD or DVD. Now it won't burn anything without getting a fixation error or a 'couldn't perform Disc-at-Once' and cancels the burn. I've read through the forums and tried various fixes to no avail. I recently reinstalled Nero but it still a no go. A memory issue? Any help would be appreciated. Log- Windows XP 5.1 IA32 WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 7/17/2002 9:20:56 AM ahead WinASPI: File 'C:\Program Files\Ahead\Nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 11/2/2004 12:54:32 PM NT-SPTI used Nero Version: 6.6.1.4 Internal Version: 6, 6, 1, 4d (Nero Express) Recorder: <_NEC DVD_RW ND-3550A> Version: 1.05 - HA 1 TA 1 - 6.6.1.4 Adapter driver: <IDE> HA 1 Drive buffer : 2048kB Bus Type : default (0) -> ATAPI, detected: ? CD-ROM: <HL-DT-ST CD-RW GCE-8481B >Version: 1.07 - HA 1 TA 0 - 6.6.1.4 Adapter driver: <IDE> HA 1 === Scsi-Device-Map === DiskPeripheral : ST380023A atapi Port 0 ID 0 DMA: On DiskPeripheral : MAXTOR 6L040J2 atapi Port 0 ID 1 DMA: On CdRomPeripheral : HL-DT-ST CD-RW GCE-8481B atapi Port 3 ID 0 DMA: On CdRomPeripheral : _NEC DVD_RW ND-3550A atapi Port 3 ID 1 DMA: On ScannerPeripheral : RICOH IS430 1R04 aic78xx Port 4 ID 5 DMA: Off === CDRom-Device-Map === HL-DT-ST CD-RW GCE-8481B D: CDRom0 _NEC DVD_RW ND-3550A G: CDRom1 ======================= AutoRun : 0 Excluded drive IDs: WriteBufferSize: 74448896 (0) Byte ShowDrvBufStat : 0 BUFE : 0 Physical memory : 511MB (523724kB) Free physical memory: 212MB (217624kB) Memory in use : 58 % Uncached PFiles: 0x0 Use Inquiry : 1 Global Bus Type: default (0) Check supported media : Disabled (0) 7.2.2006 CD-ROM (ISO) 1:18:33 PM #1 Text 0 File Isodoc.cpp, Line 6475 Iso document burn settings ------------------------------------------ Determine maximum speed : FALSE Simulate : FALSE Write : TRUE Finalize CD : FALSE Multisession : TRUE Multisession type: : Start multisession Burning mode : TAO Mode : 1 ISO Level : 1 (Max. of 11 = 8 + 3 char) Character set : ISO 9660 Joliet : TRUE Allow pathdepth more than 8 directories : TRUE Allow more than 255 characters in path : TRUE Write ISO9660 ;1 file extensions : TRUE 1:18:33 PM #2 Text 0 File Burncd.cpp, Line 3012 _NEC DVD_RW ND-3550A Buffer underrun protection activated 1:18:33 PM #3 Text 0 File ThreadedTransfer.cpp, Line 531 ReadBuffer-Pipe got 72704KB of Memory 1:18:33 PM #4 Text 0 File Reader.cpp, Line 124 Reader running 1:18:33 PM #5 Text 0 File Writer.cpp, Line 122 Writer _NEC DVD_RW ND-3550A running 1:18:33 PM #6 ISO9660GEN -11 File geniso.cpp, Line 3312 First writeable address = 0 (0x00000000) 1:18:33 PM #7 Text 0 File Burncd.cpp, Line 3305 Turn on Track-At-Once, using CD-R/RW media 1:18:33 PM #8 Text 0 File DlgWaitCD.cpp, Line 281 Last possible write address on media: 359848 ( 79:59.73) Last address to be written: 599 ( 0:09.74) 1:18:33 PM #9 Text 0 File DlgWaitCD.cpp, Line 293 Write in overburning mode: NO (enabled: CD) 1:18:33 PM #10 Text 0 File DlgWaitCD.cpp, Line 2612 Recorder: _NEC DVD_RW ND-3550A 1:18:33 PM #11 Text 0 File DlgWaitCD.cpp, Line 459 >>> Protocol of DlgWaitCD activities: <<< ========================================= 1:18:33 PM #12 Text 0 File ThreadedTransferInterface.cpp, Line 847 Setup items (after recorder preparation) 0: TRM_DATA_MODE1 () 2 indices, index0 (150) not provided original disc pos #0 + 600 (600) = #600/0:8.0 relocatable, disc pos for caching/writing not required/ required, no patch infos -> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 598 blocks [_NEC DVD_RW ND-3550A] -------------------------------------------------------------- 1:18:33 PM #13 Text 0 File ThreadedTransferInterface.cpp, Line 1059 Prepare recorder [_NEC DVD_RW ND-3550A] for write in TAO DAO infos: ========== MCN: "" TOCType: 0x00; Session Closed, disc not fixated Tracks 1 to 1: 1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 307200 1536000, ISRC "" DAO layout: =========== __Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________ -150 | lead-in | 0 | 0x41 | 0x00 -150 | 1 | 0 | 0x41 | 0x00 0 | 1 | 1 | 0x41 | 0x00 600 | lead-out | 1 | 0x41 | 0x00 1:18:33 PM #14 Text 0 File ThreadedTransferInterface.cpp, Line 1127 Removed 2 run-out blocks from end of track 1. Length: 600 -> 598. 1:18:33 PM #15 Text 0 File SCSIPassThrough.cpp, Line 38 SPTILockVolume - completed successfully for FCTL_LOCK_VOLUME 1:18:33 PM #16 Text 0 File SCSIPassThrough.cpp, Line 83 SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME 1:18:33 PM #17 Phase 24 File dlgbrnst.cpp, Line 1685 Caching of files started 1:18:33 PM #18 Text 0 File Burncd.cpp, Line 4145 Cache writing successful. 1:18:33 PM #19 Phase 25 File dlgbrnst.cpp, Line 1685 Caching of files completed 1:18:33 PM #20 Phase 36 File dlgbrnst.cpp, Line 1685 Burn process started at 48x (7,200 KB/s) 1:18:34 PM #21 SPTI -1189 File SCSIPassThrough.cpp, Line 289 G: CdRom1: SCSIStatus(x02) WinError(0) NeroError(-1189) Sense Key: 0x05 (KEY_ILLEGAL_REQUEST) Sense Code: 0x30 Sense Qual: 0x02 CDB Data: 0xAD 00 00 00 00 00 00 FF 40 00 00 00 Sense Area: 0x70 00 05 00 00 00 00 0A 00 00 00 00 30 02 Buffer x02de7a00: Len x4000 1:18:34 PM #22 Text 0 File ThreadedTransferInterface.cpp, Line 2685 Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0 1:18:34 PM #23 Text 0 File Mmc.cpp, Line 21840 Set BUFE: Buffer underrun protection -> ON 1:18:54 PM #24 Text 0 File ThreadedTransfer.cpp, Line 228 all writers idle, stopping conversion 1:19:12 PM #25 SPTI -1135 File SCSIPassThrough.cpp, Line 289 G: CdRom1: SCSIStatus(x02) WinError(0) NeroError(-1135) Sense Key: 0x03 (KEY_MEDIUM_ERROR) Sense Code: 0x0C Sense Qual: 0x00 CDB Data: 0x35 00 00 00 00 00 00 00 00 00 00 00 Sense Area: 0x70 00 03 FF FF FF 6A 0A 00 00 00 00 0C 1:19:12 PM #26 CDR -1135 File ThreadedTransferInterface.cpp, Line 2125 Write error G: _NEC DVD_RW ND-3550A 1:19:12 PM #27 TRANSFER -18 File ThreadedTransferInterface.cpp, Line 2125 Could not perform EndTrack 1:19:12 PM #28 Text 0 File Mmc.cpp, Line 16608 <_NEC DVD_RW ND-3550A > start Close Session 1:19:12 PM #29 SPTI -1176 File SCSIPassThrough.cpp, Line 289 G: CdRom1: SCSIStatus(x02) WinError(0) NeroError(-1176) Sense Key: 0x05 (KEY_ILLEGAL_REQUEST) Sense Code: 0x72 Sense Qual: 0x04 CDB Data: 0x5B 01 02 00 00 00 00 00 00 00 00 00 Sense Area: 0x70 00 05 00 00 00 00 0A 00 00 00 00 72 04 1:19:12 PM #30 CDR -1176 File WriterStatus.cpp, Line 249 Session fixation error G: _NEC DVD_RW ND-3550A 1:19:12 PM #31 TRANSFER -19 File WriterStatus.cpp, Line 249 Could not perform Fixation 1:19:12 PM #32 Text 0 File WriterStatus.cpp, Line 258 falling back to disc fixation 1:19:12 PM #33 Phase 38 File dlgbrnst.cpp, Line 1685 Burn process failed at 48x (7,200 KB/s) Existing drivers: File 'Drivers\ADPU160M.SYS': Ver=v3.60a (Lab01_N(johnstra).010529-2218), size=101888 bytes, created 8/17/2001 11:07:32 AM File 'Drivers\ASPI32.SYS': Ver=4.71 (0002), size=16877 bytes, created 7/17/2002 8:53:02 AM File 'Drivers\PXHELP20.SYS': Ver=2.02.62a, size=20016 bytes, created 10/28/2003 5:02:00 AM (Prassi/Veritas driver for win 2K) Registry Keys: HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)