Hola a todos
Este es mi primer tema y espero que mi unico problema, alla voy...
Nunca he tenido ningun problema de grabacion pero me he puesto a grabar un CD con fotos y tanto a mi hermano (su grabadora vieja) como a la mia (muchisimo mas nueva XD) nos da el mismo error. Os copio todo el log del nero aqui y espero ser de ayuda para mas gente, dew:
Windows XP 5.1
IA32
WinAspi: File 'Wnaspi32.dll': Ver=4.71 (0002), size=45056 bytes, created 21/12/2003 4:27:00
ahead WinASPI: File 'C:\Archivos de programa\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.74, size=164112 bytes, created 26/10/2004 17:35:34
Nero Version: 6.6.0.8 (Nero Express)
Recorder:             <_NEC DVD_RW ND-3500AG>   Version: 2.16 - HA 2 TA 0 - 6.6.0.8
 Adapter driver:      <atapi>                   HA 2
 Drive buffer  :      2048kB
 Bus Type      :      default (0) -> ATAPI, detected: ATAPI
CD-ROM:               <_NEC     DVD_RW ND-3500AG>Version: 2.16 - HA 2 TA 0 - 6.6.0.8
 Adapter driver:      <atapi>                   HA 2

=== Scsi-Device-Map ===
CdRomPeripheral      : V386    STEALTH DVD     1.0h    Daemon Port 0 ID 0  DMA: Off
DiskPeripheral       : Maxtor 6Y120L0                   atapi Port 1 ID 0  DMA: On
CdRomPeripheral      : _NEC DVD_RW ND-3500AG            atapi Port 2 ID 0  DMA: On
CdRomPeripheral      : AXV     CD/DVD-ROM      2.2a  a347scsi Port 4 ID 0  DMA: Off

=== CDRom-Device-Map ===
V386 STEALTH DVD           E:   CDRom1
_NEC DVD_RW ND-3500AG      D:   CDRom0
AXV CD/DVD-ROM             F:   CDRom2
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 74448896 (0) Byte
ShowDrvBufStat : 0
BUFE           : 0
Physical memory     : 511MB (523804kB)
Free physical memory: 175MB (180132kB)
Memory in use       : 65 %
Uncached PFiles: 0x0
Use Inquiry    : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)

6.12.2005
CD-ROM (ISO)
14:59:57   #1 Text 0 File Isodoc.cpp, Line 6172
   Iso document burn settings
   ------------------------------------------
   Determine maximum speed : FALSE
   Simulate                : FALSE
   Write                   : TRUE
   Finalize CD             : TRUE
   Multisession            : FALSE
   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
   
14:59:57   #2 Text 0 File Burncd.cpp, Line 2868
   _NEC DVD_RW ND-3500AG
   Protección contra insuf. datos activado
   
14:59:57   #3 Text 0 File Reader.cpp, Line 127
   Reader running
   
14:59:57   #4 Text 0 File Writer.cpp, Line 122
   Writer _NEC     DVD_RW ND-3500AG running
   
14:59:57   #5 ISO9660GEN -11 File geniso.cpp, Line 3293
   First writeable address = 0 (0x00000000)
   
14:59:57   #6 Text 0 File Burncd.cpp, Line 3153
   Turn on Track-At-Once, using CD-R/RW media
   
14:59:57   #7 Text 0 File DlgWaitCD.cpp, Line 259
   Last possible write address on media:   359848 ( 79:59.73)
   Last address to be written:             357524 ( 79:28.74)
   
14:59:57   #8 Text 0 File DlgWaitCD.cpp, Line 271
   Write in overburning mode: NO (enabled: CD)
   
14:59:57   #9 Text 0 File DlgWaitCD.cpp, Line 2316
   Recorder: _NEC DVD_RW ND-3500AG;
      CDR code: 00 97 27 18; OSJ entry from: Plasmon Data systems Ltd.
      ATIP Data:
        Special    Info [hex] 1: 00 00 00, 2: 00 00 00 (LI 0:00.00), 3: 00 00 00 (LO 0:00.00)
        Additional Info [hex] 1: 00 00 00 (invalid), 2: 00 00 00 (invalid), 3: 00 00 00 (invalid)
   
14:59:57   #10 Text 0 File DlgWaitCD.cpp, Line 433
   >>> Protocol of DlgWaitCD activities: <<<
   =========================================
   
14:59:57   #11 Text 0 File ThreadedTransferInterface.cpp, Line 830
   Setup items (after recorder preparation)
    0: TRM_DATA_MODE1 ()
       2 indices, index0 (150) not provided
       original disc pos #0 + 357525 (357525) = #357525/79:27.0
       relocatable, disc pos for caching/writing not required/ required, no patch infos
       -> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 357523 blocks [_NEC     DVD_RW ND-3500AG]
   --------------------------------------------------------------
   
14:59:57   #12 Text 0 File ThreadedTransferInterface.cpp, Line 1043
   Prepare recorder [_NEC     DVD_RW ND-3500AG] for write in TAO
   DAO infos:
   ==========
    MCN: ""
    TOCType: 0x00; Session Closed, disc fixated
    Tracks 1 to 1:
      1: TRM_DATA_MODE1, 2048/0x00, FilePos             0        307200     732518400, ISRC ""
   DAO layout:
   ===========
    __Start_|____Track_|_Idx_|_CtrlAdr_|_RecDep__________
       -150 |  lead-in |   0 |    0x41 | 0x00
       -150 |        1 |   0 |    0x41 | 0x00
          0 |        1 |   1 |    0x41 | 0x00
     357525 | lead-out |   1 |    0x41 | 0x00
   
14:59:57   #13 Text 0 File ThreadedTransferInterface.cpp, Line 1111
   Removed 2 run-out blocks from end of track 1. Length: 357525 -> 357523.
   
14:59:58   #14 Phase 24 File dlgbrnst.cpp, Line 1832
   Caching of files started
   
14:59:58   #15 Text 0 File Burncd.cpp, Line 4040
   Cache writing successful.
   
14:59:58   #16 Phase 25 File dlgbrnst.cpp, Line 1832
   Caching of files completed
   
14:59:58   #17 Phase 36 File dlgbrnst.cpp, Line 1832
   Burn process started at 32x (4.800 KB/s)
   
14:59:58   #18 Text 0 File ThreadedTransferInterface.cpp, Line 2609
   Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0
   
14:59:58   #19 Text 0 File Mmc.cpp, Line 21235
   Set BUFE: Buffer underrun protection -> ON
   
15:02:20   #20 SCSI -1135 File Cdrdrv.cpp, Line 1435
   SCSI Exec, HA 2, TA 0, LUN 0, buffer 0x03510000
   Status:     0x04 (0x01, SCSI_ERR)
   HA-Status   0x00 (0x00, OK)
   TA-Status   0x02 (0x01, SCSI_TASTATUS_CHKCOND)
   Sense Key:  0x03 (KEY_MEDIUM_ERROR)
   Sense Code: 0x0C
   Sense Qual: 0x00
   CDB Data:   0x2A 0x00 0x00 0x03 0xC4 0xA0 0x00 0x00 0x20 0x00 0x00 0x00
   Sense Data: 0x70 0x00 0x03 0x00 0x03 0xC2 0x3B 0x0A
               0x00 0x00 0x00 0x00 0x0C 0x00
   
15:02:20   #21 CDR -1135 File Writer.cpp, Line 311
   Write error
   
15:02:20   #22 Text 0 File ThreadedTransfer.cpp, Line 228
   all writers idle, stopping conversion
   
15:02:20   #23 Text 0 File ThreadedTransfer.cpp, Line 222
   conversion idle, stopping reader
   
15:02:20   #24 CDR -201 File WriterStatus.cpp, Line 200
   Invalid write state
   _NEC DVD_RW ND-3500AG\H2 T0
   
15:02:20   #25 TRANSFER -18 File WriterStatus.cpp, Line 200
   Could not perform EndTrack
   
15:02:20   #26 Text 0 File Mmc.cpp, Line 15908
   <_NEC    DVD_RW ND-3500AG> start Close Session
   
15:02:20   #27 SCSI -1176 File Cdrdrv.cpp, Line 1181
   SCSI Exec, HA 2, TA 0, LUN 0
   Status:     0x04 (0x01, SCSI_ERR)
   HA-Status   0x00 (0x00, OK)
   TA-Status   0x02 (0x01, SCSI_TASTATUS_CHKCOND)
   Sense Key:  0x05 (KEY_ILLEGAL_REQUEST)
   Sense Code: 0x72
   Sense Qual: 0x04
   CDB Data:   0x5B 0x01 0x02 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
   Sense Data: 0x70 0x00 0x05 0x00 0x00 0x00 0x00 0x0A
               0x00 0x00 0x00 0x00 0x72 0x04
   
15:02:20   #28 CDR -1176 File WriterStatus.cpp, Line 249
   Session fixation error
   
15:02:20   #29 TRANSFER -19 File WriterStatus.cpp, Line 249
   Could not perform Fixation
   
15:02:20   #30 Text 0 File WriterStatus.cpp, Line 258
   falling back to disc fixation
   
15:02:20   #31 Phase 38 File dlgbrnst.cpp, Line 1832
   Burn process failed at 32x (4.800 KB/s)
   

Existing drivers:
File 'Drivers\ASPI32.SYS': Ver=4.71 (0002) built by: WinDDK, size=16512 bytes, created 21/12/2003 4:27:00
File 'Drivers\PXHELP20.SYS': Ver=2.02.62a, size=20016 bytes, created 20/12/2004 20:37:14 (Prassi/Veritas driver for win 2K)
File 'Drivers\atapi.sys': Ver=?.?.?.?, size=95360 bytes, created 03/08/2004 22:59:44 (Adapter driver for rec)

Registry Keys:
HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)