What version of Nero are you using?
If it's a later version (7 for example) you may well have a code that may tell us more.......here they are (from the Nero faq)
That may at least give a clue, but if the files work, it does sound like a data transfer error rather than a proper segment fault error on your HD.
A sector is usually 512 bytes by the way
[SectorVerify]
10=Sectors from %d to %d on disc are different to source
11=Sector %d on disc has different content to source
20=Read errors from sector %d to %d
21=Read error at sector %d
30=Audio data readable but not comparable
100=Audio-verify runs with read/write-offset of %d samples
[PLUGAUDIOITEM]
0=No Error
-1=File cannot be read
-2=Read error in audio file
-3=Write error in audio file
-4=File cannot be closed
-5=Out of memory
-6=Internal error
-7=Internal illegal parameter
[CDADOC]
0=No error
-2=DRM checking failed. Not enough burn licenses available.
[VERIFYERR]
0=No error
1=Files are different
2=CD File is missing
3=Hard drive file is missing
4=Disc file is inaccessible
5=Hard drive file is inaccessible
6=Read error on CD file
7=Read error on hard drive file
8=Directory missing on CD
9=Directory missing on hard drive
10=Cannot mount the written CD
11=Drive letter of the recorder is unknown!
12=Unknown verify error
13=Status summary
14=Out of memory
15=I/O error while reading the file system structure
16=Error caused by corrupt filesystem structure
17=Error caused by supplying wrong parameters to the fs
18=Too many locks of the filesystem buffers
19=Cannot find the corresponding file system on the destination disc
20=Read error on hard drive sector
21=Backup file content differs from the hard drive data
22=Backup file contains incorrect hard drive information
[ANTIVIRSCAN]
0=No Error
1=File is probably infected by a virus
2=File could not be cured
3=File was cured successfully
4=An unknown error occurred during the virus scan
5=Out of memory error during the virus scan
6=A read error occurred during the virus scan
7=File might be infected by an unknown virus
[WAVEAUDIOITEM]
-1=Out of memory
-2=Cannot open wave file!
-3=Unexpected file format!
-4=Read error in wave file!
-5=Only PCM wave files are supported!
-6=Unsupported wave sample format!
-7=Internal error: Init is missing!
-8=Internal error!
[AVIVCDFILEITEM]
-100=Video MPEG encoder not available
-101=Invalid Video MPEG encoder DLL
-102=This version of the Video MPEG encoder DLL is not compatible
-103=Cannot create a temporary file name
-104=MPEG2 plug-in not installed
-105=Unknown error in the Video MPEG encoder
1=Not enough memory
2=Not enough encoding parameters given to the encoder
3=Unable to open the file
4=Encoding interrupted by the user
5=Cannot start video encoder
6=The parameters were not accepted by the encoder
7=Invalid video format
8=Error creating video format
9=Cannot open output file
10=Error during encoding
11=Decoder not ready
12=Cannot get bitmap
13=Disk full
14=Error retrieving information
15=The encoder cannot produce this output format
16=Unsupported file format
[DVDREALLOC]
-1=Unspecified internal error
-2=Buffer too small to hold all the information
-3=Failed to create a unique temporary file name
-4=Not enough memory to complete current action
-5=Violation against DVD specification detected
-6=Invalid parameter
-7=Too many video title sets
-8=A file item requires a pathname
-10=File access denied
-11=Invalid file handle
-12=Share violation
-13=Too many open files
-14=File '%s' not found
-15=Disk full
-16=Hardware I/O error
-17=Generic/unknown I/O error
-18=Seek beyond the file
-19=File size is not a multiple of a logical block size (2 KB)
-20=File is not a DVD file format
-21=Required file '%s' is not present
-22=File '%s' is not referenced and should not be present
-23=Video title set containing '%s' is not required
-24=One or more files (mostly VOB file(s)) do not belong to the corresponding IFO file
1=Cannot load library
2=Invalid library
3=Cannot read compilation
4=VIDEO_TS directory not found
5=Backup file '%s' should be identical to '%s'
[HDSCSIPFILE]
-1=Read error on SCSI device!
-2=Out of memory!
-3=Seek error on SCSI device!
-4=Illegal call (internal error)!
[HFSIMAGEITEM]
-1=Read error on SCSI device!
-2=Out of memory!
-3=Illegal call (internal error)!
[ISODOC]
-1=Error writing multisession info file!
-2=Error inserting multisession info file into compilation!
-3=Error recreating multisession CD stamp!
-4=Fatal error while trying to read HFS data from SCSI hard drive!
-5=Fatal error while trying to read boot image data! No disc in the drive?
-6=Error while creating ISO or Joliet file names!
[W95PARTREADFILE]
-1=Illegal logical drive specified!
-2=Cannot access vwin32.dll!
-3=Drive locking failed!
-4=Seek within logical drive failed!
-5=Open/Close mismatch!
-6=Read error!
-7=Cannot get drive information!
-8=Cannot write on a logical device!
[TRANSFER]
1=Aborted by user
2=Error opening file
3=Error closing file
4=Error reading file
5=Error reading cache file
6=File error
-1=General Error
-2=Error: function not implemented
-3=Error: no user interface
-4=Error: phase error
-5=Error: not enough memory
-6=Error writing file
-7=Error opening cache file
-8=Error writing cache file
-9=Error: no driver
-10=Wrong Version
-11=Error accessing cache file
-12=Capability cannot be changed
-13=Error reading cache file
-14=Error writing cache file
-15=Cache file too small - not all files could be cached
-16=Could not perform StartTrack
-17=Could not perform ReadBuffer
-18=Could not perform EndTrack
[CDR]
-1 =Unspecified Recorder Error
-2 =Bad DLL version
-3 =Recorder function not implemented
-4 =Recorder function not supported
-14 =Capability read only
-15 =Capability unknown
-20 =Queuing failed
-21 =Wait queue failed
-22 =Abort queue failed
-23 =Out of memory
-25 =Queue again later
-26 =SCSI/ATAPI command timeout error
-31 =Buffer too large
-100 =Parameter error
-101 =Invalid track info
-102 =Invalid fixinfo
-103 =Invalid track mode
-104 =Invalid pause length
-200 =Internal state error
-201 =Invalid write state
-300 =Unspecified host adapter error
-400 =Unspecified target error
-500 =SCSI command aborted
-599 =Undefined SCSI error
-600 =Device not available
-601 =Specified host adapter invalid
-999 =No SCSI/IDE command
-1000=SCSI/IDE error
-1001=Absorption control error
-1002=Application code conflict
-1003=ATIP time miscompare
-1004=Attempt to cross track boundary
-1005=Audio play aborted
-1006=Audio play stopped due to error
-1007=Barcode reading error
-1008=Block size conflict
-1009=Block size format conflict
-1010=Buffer data size error
-1011=Buffer error during recording
-1012=Buffer overflow
-1013=Buffer underrun
-1014=Calibration area almost full
-1015=Calibration area full
-1016=Cannot read ATIP
-1017=Cannot recover from lead-in
-1018=Cannot recover from lead-out
-1019=Cannot recover from PMA
-1020=Cannot recover from callibration area
-1021=Cannot recover from track
-1022=Command currently not valid
-1023=Command sequence error
-1024=Communication failure
-1025=Current command aborted
-1026=Current program area empty
-1027=Damaged track present
-1028=Damaged track detected
-1029=Data track length error
-1030=Diagnostic failure
-1031=Disc is write protected
-1032=Disc style mismatch
-1033=Drive not ready
-1034=Dummy blocks added
-1035=EEPROM failure
-1036=End of disc reached
-1037=End of user area of this track
-1038=Exit packet write area
-1039=Focus or tracking error
-1040=Illegal block size for command
-1041=Illegal cue sheet
-1042=Illegal cue sheet length
-1043=Illegal cue sheet parameter
-1044=Illegal field in command
-1045=Illegal form for reserved track
-1046=Illegal disc
-1047=Illegal mode for this track
-1048=Illegal packet mode
-1049=Illegal reserve length
-1050=Illegal reserve packet length
-1051=Illegal track
-1052=Illegal track descriptor table
-1053=Illegal track descriptor unit
-1054=Illegal track mode
-1055=Illegal track number
-1056=Illegal track status
-1057=Illegal transfer length
-1058=Inappropriate command
-1059=Initiator detected error message received
-1060=Internal controller error
-1061=Internal target failure
-1062=Invalid audio address
-1063=Invalid bits in identify message
-1064=Invalid block address
-1065=Invalid command
-1066=Invalid field in command
-1067=Invalid field in parameter
-1068=Invalid LUN
-1069=Invalid message error
-1070=Invalid start address
-1071=Laser current over
-1072=Laser adjustment error
-1073=Link area encountered
-1074=Link blocks encountered
-1075=Logical unit is reserved
-1076=Disc changed
-1077=Disc format corrupted
-1078=Disc load mechanism failed
-1079=Disc load or eject failure
-1080=Disc not present
-1081=Disc removal prevented
-1082=Message error
-1083=Mode parameters changed
-1084=Monitor ATIP error
-1085=Nonexistent block encountered
-1086=Not enough space
-1087=Not ready to ready transition
-1088=No additional sense information
-1089=No barcode available
-1090=No EFM at search address
-1091=No packet
-1092=No pregap
-1093=No seek complete
-1094=No TOC
-1095=No track for finalize
-1096=Disc should be removed
-1097=Overlapped command attempted
-1098=Packet size mismatch
-1099=Parameter list length error
-1100=Parameter list too long
-1101=Parity error
-1102=PCA area full
-1103=PMA area full
-1104=Positioning error
-1106=Power calibration error
-1107=Program area not empty
-1108=Recovered data with ECC
-1110=Recovered data with retries
-1111=Recovery needed
-1112=Request for fixation failed
-1113=Reserved track present
-1114=Reset occurred
-1115=Select or reselect failure
-1116=Selftest failure
-1117=Stopped on nondata block
-1118=Track-at-once not in PMA
-1119=Track following error
-1120=Tray out
-1121=Unable to read TOC, PMA, or subcode
-1122=Unable to recover TOC
-1123=Unable to reserve track because track mode has been changed
-1124=Unknown disc format
-1125=Unrecordable disc
-1126=Unrecoverable damaged track has made writable area too small
-1127=Unrecoverable track descriptor encountered
-1128=Unrecoverable read error
-1129=Unwritten area encountered
-1130=Verify failed
-1131=Write append error
-1132=Write busy
-1133=Write complete
-1134=Write data error with CU
-1135=Write error
-1136=Write illegal block length
-1137=Write operation in progress
-1138=Writing lead-in or lead-out in progress
-1139=Audio play in progress
-1140=Audio play completed
-1141=Invalid parameter list length
-1142=Synchronous data transfer error
-1143=Blank CD
-1144=No PMA
-1145=OPC initialization error
-1146=OPC execution error
-1147=OPC ALPC error
-1148=OPC timeout
-1149=Read address is ATIP
-1150=Write address is EFM
-1151=Write emergency occurred
-1152=Disc speed error
-1153=Disc not identified
-1154=Disc not supported
-1155=Write emergency
-1156=Servo error
-1157=PLL error
-1158=Address error
-1159=Header monitor error
-1160=Header search error
-1161=EDC error
-1162=Link/RI/RO error
-1163=CDBD overrun error
-1164=Write audio on reserved track
-1165=Hardware error
-1166=Invisible track present
-1167=Incomplete track present (perhaps a CD-RFS-CD?)
-1168=Unknown track present
-1169=Logical unit not ready, operation in progress
-1170=Insufficient time for operation
-1171=Read timeout
-1172=Write timeout
-1173=Read Write Control Task Error
-1174=Mechanism Control Task Error
-1175=Internal trace
-1176=Session fixation error
-1177=CLV speed invalid
-1178=Recovered error
-1179=Disc error
-1180=Illegal request
-1181=Unit attention
-1182=Data protect error
-1183=Blank check command error
-1184=Vendor-specific error
-1185=Copy command aborted
-1186=Volume overflow error
-1187=Data miscompare error
-1188=Disc is not formatted (esp. important for DVD+RW)
-1189=Cannot read disc - incompatible format
-1190=DVD problem - no key to read protected DVD
-1191=Erasing failure
-1192=Erasing failure - incomplete erase operation detected
-1193=Disc is writable but not empty
-1194=PMA update failure
-1195=Disc not present - tray closed
-1196=Disc not present - tray open
-1197=Drive is in use by another application
-1198=Drive is in use by another application
-1200=Invalid address for write
-1201=Drive is in use of InCD
-1202=Drive is in use of IMAPI
-1203=Failed to lock IMAPI
-1205=Burning Layer 1
-1206=Burning Layer 2
-1207=Book Type automatically set to: %s
-1208=DVD-ROM
-1209=Physical disc type
-1210=Current recorder setting
-1211=Book Type set to: %s
-1500=DMA-driver error, timeout occured
-1501=DMA-driver error, parity error
-1502=DMA-driver error, CRC error
-1503=Device handle invalid
-1504=Medium format corrupted
-1505=Medium format failed
-1506=Zoned formatting failed due to spare linking
[IMAGEGEN]
0 =No error
1 =Aborted by user
2 =File missing
3 =File has the wrong format
-1 =Unspecified Imagegenerator Error
-2 =Could not perform StartDisk
-3 =Could not perform StartSession
-4 =Could not perform StartTrack
-5 =Could not perform Write
-6 =Could not perform EndTrack
-7 =Could not perform EndSession
-8 =Could not perform EndDisk
-9 =Error during ISO relocation
-10 =The image chunks:
-11 =Error during generation of Disc-at-once information
-12 =Cannot write track at correct position with this recorder
[ISO9660GEN]
-3 =Joliet names of these files (listed here in ISO-L3) are the same:
-4 =The ISO 9660 Generator ran out of memory
-5 =The following fixed file has an illegal position
-6 =Preparation of ISO 9660 structures failed
-7 =Too many files in one group of interleaved files
-8 =IO error using the boot image
-9 =Cannot allocate space on the CD-R
-10 =Boot sector not recognized
[MAKEJOLIETNAMES]
-3 =The listed files have no unique Joliet name:
[PHASE]
1 =Reading directories
2 =Creating directories
5 =Writing files
6 =Finishing
9 =Prepare audio writing
10 =Writing audio
11 =Writing Audio Track
12 =Finishing
13 =Prepare HFS
14 =Writing HFS
15 =Writing HFS completed
16 =Prepare Image
17 =Writing Image
18 =Burn Image
19 =Finishing
20 =Reading of disc started
21 =Reading disc completed
22 =Reading disc failed
23 =Reading disc aborted
24 =Caching of files started
25 =Caching of files completed
26 =Caching of files failed
27 =Caching of files aborted
28 =Speed measurement started
29 =Speed measurement completed: %s
30 =Speed measurement failed
31 =Speed measurement aborted
32 =Simulation started at %s
33 =Simulation completed successfully at %s
34 =Simulation failed at %s
35 =Simulation aborted
36 =Burn process started at %s
37 =Burn process completed successfully at %s
38 =Burn process failed at %s
39 =Burn process aborted
40 =Aborted by user
41 =Compilation will not fit onto a blank disc
42 =Writing lead-in
43 =Writing lead-out
44 =Writing lead-in and lead-out
45 =Generation of disc identification started
46 =Generation of disc identification finished
47 =Generating relocation information
48 =Analyzing disc
49 =Reading track info
50 =Reading Media Catalog Number
51 =Reading ISRC
52 =Finding end of track
54 =Copying disc
55 =Completing
56 =Unspecified Error. The burn process failed!
57 =Disc-at-once overburning option activated
59 =Writing hard drive backup track
60 =Completing
61 =Simulation started
62 =Simulation completed successfully
63 =Simulation failed
64 =Simulation aborted
65 =Burn process started
66 =Burn process completed successfully
67 =Burn process failed
68 =Burn process aborted
69 =Scanning Indexes
70 =Only the recording of the first session can be Simulated
71 =Writing several sessions at once. Result may be unreadable on some drives.
73 =Preparing items
74 =Checking discs
76 =Write speed changed due to disc type
77 =Writing tracks
78 =Data verification started
79 =Data verification aborted
80 =Data verification completed successfully
81 =Data verification failed
82 =Encoding video
83 =Virus scanning started
84 =Virus scanning completed
85 =Virus scanning completed. A virus was found and burning must be aborted!!!
86 =CD TEXT is not supported
91 =Poor performance by your DMA chipset driver (look for updates)
92 =Recording quality may be affected by not using JustSpeed option
93 =Unable to write at this speed. Please select a slower speed and try again.
98 =Start formatting disc before burning
99 =Formatting disc before burning
100 =Formatting disc was successful
101 =Formatting disc failed
102 =Fast user switching detected. This may cause buffer underrun.
105 =Preparing Audio CD-RW (erasing TOC and/or tracks)
106 =Preparing of Audio CD-RW (erasing TOC and/or tracks) completed
107 =Audio CD-RW preparations failed
108 =Audio CD-RW preparations aborted
109 =Warning: Disabling SMART-BURN function may result in writing errors and impact on the quality of disc recorded.
110 =Recorder does not support writing in Raw+96 mode on CD-RW.
111 =DVD-Video files sorted
112 =DVD-Video files reallocation started
113 =DVD-Video files reallocation completed
114 =DVD-Video files reallocation completed (no file modified)
115 =DVD-Video files reallocation failed
116 =VariRec disabled - no Audio CD
117 =DVD-Video files compliance test failed
118 =SSW (Super Speed Writing) activated
120 =Creating the image for burning
121 =Creating Image completed successfully
122 =Burning the bitmap to the disc started
123 =Burning the bitmap to the disc completed successfully
124 =Burning the bitmap to the disc failed
125 =Burning the bitmap to the disc aborted
126 =Best write speed for disc detected
127 =Generating DVD high compatibility borders
128 =Generating DVD high compatibility borders
129 =Generating DVD borders completed successfully
130 =Generating DVD borders aborted
131 =Recording quality may be affected by not using the PoweRec option
132 =DVD-Video files compliance ignored
133 =Writing short lead-out
134 =Quick Grow last Border
135 =Quick Add Border
136 =Quick Format DVD-RW
137 =Image transfer started
138 =Image transfer completed successfully
139 =Image transfer failed
140 =Image transfer aborted
141 =Label transfer started
142 =Label transfer completed successfully
143 =Label transfer failed
144 =Label transfer aborted
145 =Burn process and image transfer started
146 =Burn process and image transfer completed successfully
147 =Burn process or image transfer failed
148 =Burn process and image transfer aborted
149 =Network transfer completed successfully
150 =Network transfer failed
151 =Authentication failed
152 =Server connection failed
153 =Server license error
154 =Recording quality may be affected by not using Auto Pilot option
156 =Drive is in use by another application
159 =The simulation has been done at %s speed by PoweRec
160 =The write has been done at %s speed by PoweRec
161 =Burn process completed successfully with warnings
162 =Simulation completed successfully with warnings
166 =Simulation is not supported for this disc type
167 =Not able to write Disc-at-once on an open disc.
168 =Compilation cannot be written on the selected recorder(s)
169 =DRM checking failed. Not enough burn licenses available.
170 =Not possible to burn more than 154 sessions to a DVD disc.
171 =Writing data files started
172 =Writing data files completed successfully
173 =Writing data files failed
174 =Writing data files completed with warnings
175 =Finalizing disc started
176 =Finalizing the disc failed
177 =Disc finalized successfully
178 =Preparing the disc failed
179 =Writing file to disc failed
180 =Copy process failed during reading.
181 =Writing lead-out...
182 =Burn Proof activated
183 =SolidBurn activated
184 =SolidBurn activated
185 =Overspeed burning activated
