Mon graveur ne grave plus les dvd+r

Bonjour, graveur hd-dt-st dvdram gsa-t50n sur packard bell easynote et vista mon graveur ne grave plus les dvd r malgré mise à jour du firmware et test avec d'autres logiciels de gravure que nero ou windows. j'ai ce rapport d'erreur: 4K25-6103-2505-0000-0020-5045-KC41-**** Windows Vista 6.0 IA32 WinAspi: - NT-SPTI used Nero Version: 8.3.7.0 Internal Version: 8, 3, 7, 0 (Nero Express) Recorder: <HL-DT-ST DVDRAM GSA-T50N>Version: RR09 - HA 1 TA 0 - 8.3.7.0 Adapter driver: <Serial ATA> HA 1 Drive buffer : 2048kB Bus Type : default CD-ROM: <HL-DT-ST DVDRAM GSA-T50N >Version: RR09 - HA 1 TA 0 - 8.3.7.0 Adapter driver: <Serial ATA> HA 1 === Scsi-Device-Map === DiskPeripheral : WDC WD2500BEVT-22ZCT0 iaStor Port 0 ID 0 DMA: On CdRomPeripheral : HL-DT-ST DVDRAM GSA-T50N iaStor Port 0 ID 1 DMA: Off === CDRom-Device-Map === HL-DT-ST DVDRAM GSA-T50N D: CdRom0 ======================= AutoRun : 1 Excluded drive IDs: WriteBufferSize: 83886080 (0) Byte BUFE : 0 Physical memory : 2047MB (2097151kB) Free physical memory: 1683MB (1724060kB) Memory in use : 45 % Uncached PFiles: 0x0 Use Inquiry : 1 Global Bus Type: default (0) Check supported media : Disabled (0) 4.2.2010 Compilation ISO 09:22:10 #1 Text 0 File SCSIPTICommands.cpp, Line 450 LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL 09:22:10 #2 Text 0 File Isodoc.cpp, Line 6714 Iso document burn settings ------------------------------------------ Determine maximum speed : FALSE Simulate : FALSE Write : TRUE Finalize CD : TRUE Multisession : FALSE Burning mode : DAO 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 09:22:10 #3 ISO9660GEN -11 File Geniso.cpp, Line 3349 First writeable address = 0 (0x00000000) 09:22:10 #4 Text 0 File Burncd.cpp, Line 3568 Turn on Disc-At-Once, using DVD media 09:22:11 #5