Burning is no longer working, nor is simulation. Can't figure out the problem as it was working until last week... Here's a log, I'd be very appreciative of any help I can get. Windows XP 5.1 IA32 WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 21/11/2005 06:48:21 ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 26/10/2004 19:35:34 Nero Version: 6.6.0.18 Internal Version: 6, 6, 0, 18e (Nero Express) Recorder: <LITE-ON DVDRW SOHW-1693S>Version: KS0B - HA 1 TA 0 - 6.6.0.18 Adapter driver: <atapi> HA 1 Drive buffer : 2048kB Bus Type : default (0) -> ATAPI, detected: ATAPI CD-ROM: <LITE-ON DVDRW SOHW-1693S>Version: KS0B - HA 1 TA 0 - 6.6.0.18 Adapter driver: <atapi> HA 1 === Scsi-Device-Map === DiskPeripheral : ST380012A atapi Port 0 ID 0 DMA: On DiskPeripheral : ST3200822A atapi Port 0 ID 1 DMA: On CdRomPeripheral : LITE-ON DVDRW SOHW-1693S atapi Port 1 ID 0 DMA: On CdRomPeripheral : CD-RW CDR-7S52 atapi Port 1 ID 1 DMA: On CdRomPeripheral : JA0965Z YKA206V 2.0B vaxscsi Port 2 ID 0 DMA: Off === CDRom-Device-Map === LITE-ON DVDRW SOHW-1693S D: CDRom0 CD-RW CDR-7S52 E: CDRom1 JA0965Z YKA206V G: CDRom2 ======================= AutoRun : 1 Excluded drive IDs: WriteBufferSize: 83886080 (0) Byte ShowDrvBufStat : 0 BUFE : 0 Physical memory : 765MB (784368kB) Free physical memory: 102MB (104528kB) Memory in use : 86 % Uncached PFiles: 0x0 Use Inquiry : 1 Global Bus Type: default (0) Check supported media : Disabled (0) 17.7.2007 ISO compilation 23:38:59 #1 Text 0 File Isodoc.cpp, Line 6359 Iso document burn settings ------------------------------------------ Determine maximum speed : TRUE Simulate : TRUE Write : TRUE Finalize CD : TRUE Multisession : FALSE Burning mode : DAO Mode : 1 ISO Level : 2 (Max. of 31 chars) 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 23:38:59 #2 Text 0 File Reader.cpp, Line 127 Reader running 23:38:59 #3 Text 0 File Writer.cpp, Line 122 Writer LITE-ON DVDRW SOHW-1693S running 23:38:59 #4 ISO9660GEN -11 File geniso.cpp, Line 3309 First writeable address = 0 (0x00000000) 23:39:01 #5 Text 0 File Burncd.cpp, Line 3233 Turn on Disc-At-Once, using DVD media 23:39:01 #6 Text 0 File DlgWaitCD.cpp, Line 270 Last possible write address on media: 2298495 (510:46.45, 4489MB) Last address to be written: 2217407 (492:45.32, 4330MB) 23:39:01 #7 Text 0 File DlgWaitCD.cpp, Line 282 Write in overburning mode: NO (enabled: CD) 23:39:01 #8 Text 0 File DlgWaitCD.cpp, Line 2483 Recorder: LITE-ON DVDRW SOHW-1693S, Media type: DVD-R Disc Manufacturer: RITEKF - 1 Disc Application Code: 64, Disc Physical Code: 193 23:39:01 #9 Text 0 File DlgWaitCD.cpp, Line 448 >>> Protocol of DlgWaitCD activities: <<< ========================================= 23:39:01 #10 Text 0 File ThreadedTransferInterface.cpp, Line 838 Setup items (after recorder preparation) 0: TRM_DATA_MODE1 () 2 indices, index0 (150) not provided original disc pos #0 + 2217408 (2217408) = #2217408/492:45.33 relocatable, disc pos for caching/writing not required/ required, no patch infos -> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 2217408 blocks [LITE-ON DVDRW SOHW-1693S] -------------------------------------------------------------- 23:39:01 #11 Text 0 File ThreadedTransferInterface.cpp, Line 1051 Prepare recorder [LITE-ON DVDRW SOHW-1693S] for write in CUE-sheet-DAO DAO infos: ========== MCN: "" TOCType: 0x00; Session Closed, disc fixated Tracks 1 to 1: 1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 4541251584, ISRC "" DAO layout: =========== __Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________ 0 | lead-in | 0 | 0x41 | 0x00 0 | 1 | 0 | 0x41 | 0x00 0 | 1 | 1 | 0x41 | 0x00 2217408 | lead-out | 1 | 0x41 | 0x00 23:39:01 #12 Phase 24 File dlgbrnst.cpp, Line 1832 Caching of files started 23:39:03 #13 Text 0 File Burncd.cpp, Line 4122 Cache writing successful. 23:39:03 #14 Phase 25 File dlgbrnst.cpp, Line 1832 Caching of files completed 23:39:03 #15 Phase 28 File dlgbrnst.cpp, Line 1832 Speed measurement started 23:39:03 #16 Text 0 File ThreadedTransferInterface.cpp, Line 2661 Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0 23:46:00 #17 Text 0 File WriterStatus.cpp, Line 116 <LITE-ON DVDRW SOHW-1693S> start writing Lead-Out at LBA 2217408 (21D5C0h), lenght 0 blocks 23:46:00 #18 Text 0 File ThreadedTransfer.cpp, Line 228 all writers idle, stopping conversion 23:46:00 #19 Phase 29 File dlgbrnst.cpp, Line 1781 Speed measurement completed: 7.8x (10,784 KB/s) 23:46:01 #20 Text 0 File Burncd.cpp, Line 4188 Can only write at 6x instead of 12x, because speed of source data is too slow 23:46:01 #21 Phase 32 File dlgbrnst.cpp, Line 1832 Simulation started at 6x (8,310 KB/s) 23:46:01 #22 Text 0 File ThreadedTransferInterface.cpp, Line 2661 Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0 23:46:01 #23 Text 0 File DVDR.cpp, Line 2571 Recording mode: Sequential Recording Mode 23:46:01 #24 Text 0 File Mmc.cpp, Line 21774 Set BUFE: Buffer underrun protection -> ON , SMART-BURN : ON 23:46:01 #25 Text 0 File DVDR.cpp, Line 2726 Start write address at LBA 0 DVD high compatibility mode: Yes 23:46:01 #26 Text 0 File Cdrdrv.cpp, Line 8892 ---- DVD Structure: Physical Format Information (00h) ---- Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050 Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 2.1 (33) Disc Size: 120 mm, Maximum Rate: <not specified> (F h) Number of Layers: 1, Track Path: Parallel Track Path (PTP), Layer Type: recordable Linear Density: 0,267 um/bit, Track Density: 0,74 um/track Starting Physical Sector Number of Data Area: 30000 h (DVD-ROM, DVD-R/-RW, DVD+R/+RW) End Physical Sector Number of Data Area: 26127F h End Sector Number in Layer 0: 0 h (LBN: FFFD0000 h, 4193920 MB) Data in Burst Cutting Area (BCA) does not exist Start sector number of the current Border-Out: 0 h Start sector number of the next Border-In: 0 h Media Specific [16..63]: 00 60 00 10 20 30 40 50 - 00 00 00 21 00 00 00 00 .`...0@P...!.... 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................ 23:46:07 #27 Text 0 File Cdrdrv.cpp, Line 1288 23:46:07.109 - LITE-ON DVDRW SOHW-1693S\H1 T0 : Queue again later 23:48:58 #28 SCSI -1046 File Cdrdrv.cpp, Line 1436 SCSI Exec, HA 1, TA 0, LUN 0, buffer 0x03420000 Status: 0x04 (0x01, SCSI_ERR) HA-Status 0x00 (0x00, OK) TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND) Sense Key: 0x02 (KEY_NOT_READY) Sense Code: 0x30 Sense Qual: 0x05 CDB Data: 0x2A 0x00 0x00 0x00 0x0C 0x40 0x00 0x00 0x20 0x00 0x00 0x00 Sense Data: 0x70 0x00 0x02 0x00 0x00 0x00 0x00 0x0A 0x00 0x00 0x00 0x00 0x30 0x05 23:48:58 #29 CDR -1046 File Writer.cpp, Line 311 Illegal disc 23:48:58 #30 Text 0 File ThreadedTransfer.cpp, Line 228 all writers idle, stopping conversion 23:48:58 #31 Text 0 File ThreadedTransfer.cpp, Line 222 conversion idle, stopping reader 23:48:59 #32 Text 0 File DVDR.cpp, Line 2969 EndDAO: Last written address was 3135 23:50:18 #33 Phase 34 File dlgbrnst.cpp, Line 1832 Simulation failed at 6x (8,310 KB/s) Existing drivers: File 'Drivers\CDRALW2K.SYS': Ver=8.0.0.212 , size=9464 bytes, created 08/03/2007 00:51:00 File 'Drivers\ASPI32.SYS': Ver=4.71 (0002) built by: WinDDK, size=16512 bytes, created 21/11/2005 06:48:21 File 'Drivers\PXHELP20.SYS': Ver=3.00.56a, size=43528 bytes, created 08/03/2007 00:51:00 (Prassi/Veritas driver for win 2K) File 'Drivers\atapi.sys': Ver=5.1.2600.2180 (xpsp_sp2_rtm.040803-2158), size=95360 bytes, created 04/08/2004 06:59:42 (Adapter driver for rec) Registry Keys: HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option) Thanks!