js ajax 上传文件:我用COMB刻录数据文件时,总是不能完成轨道,这是为什么啊?

是刻录机坏了还是操作的问题啊?
刻录最后给出了一个LOG 文件如下,哪位大虾解惑了?
Windows XP 5.1
IA32
WinAspi: -
ahead WinASPI: File 'C:\Program Files\Ahead\nero\Wnaspi32.dll': Ver=2.0.1.68, size=160016 bytes, created 2004-7-22 17:33:44
Nero版本： 6.3.1.25 (Nero Express)
刻录机： <TSSTcorp CDW/DVD TS-L462A>版本: AS30 - HA 0 TA 1 - 6.3.1.25
适配卡驱动程序： <atapi> HA 0
Drive buffer : 2048kB
Bus Type : default (0) -> ATAPI, detected: ATAPI
CD-ROM: <TSSTcorp CDW/DVD TS-L462A>版本: AS30 - HA 0 TA 1 - 6.3.1.25
适配卡驱动程序： <atapi> HA 0
=== Scsi-Device-Map ===
DiskPeripheral : HTS424040M9AT00 atapi Port 0 ID 0 DMA: On
CdRomPeripheral : TSSTcorp CDW/DVD TS-L462A atapi Port 0 ID 1 DMA: Off

=== CDRom-Device-Map ===
TSSTcorp CDW/DVD TS-L462 F: CDRom0
=======================

AutoRun : 1
Excluded drive IDs:
WriteBufferSize: 72351744 (0) Byte
ShowDrvBufStat : 0
BUFE : 0
Physical memory : 495MB (507184kB)
Free physical memory: 116MB (119660kB)
Memory in use : 76 %
Uncached PFiles: 0x0
Use Static Write Speed Table: 0
Use Inquiry : 1
Global Bus Type: default (0)
Check supported media : Disabled (0)