Question for how to burn dvd on Sony laptop

[Yasushi Okubo]

We just bought Sony Vaio laptop: PCG-GRT380ZG and installed WS3.0.   I 
am trying to burn a DVD-R media now and tested the following script, but 
it never worked.
Could someone advise me if you know how to burn dvd with sony laptop ?
Note: cdrecord works fine with only cd-r.

1. dvdrecord- both dvdrecord-0.1.2-12 and dvdrecord-0.1.5-1
=== output ===
Waiting for reader process to fill input buffer ... input buffer ready.
trackno=0
BURN-Free is ON.
dvdrecord: Input/output error. reserve track: scsi sendcmd: no error
CDB:  53 00 00 00 00 FF FF FF FF 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 05 00 00 00 00 12 00 00 00 00 24 00 00 00
Sense Key: 0x5 Illegal Request, Segment 0
Sense Code: 0x24 Qual 0x00 (invalid field in cdb) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.006s timeout 200s
dvdrecord: Cannot open new session.
dvdrecord: fifo had 64 puts and 0 gets.
dvdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.
=== end of output ===

2. cdrecord-prodvd
=== output ===
Using generic SCSI-3/mmc-2 DVD-R/DVD-RW driver (mmc_dvd).
Driver flags   : DVD MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R
Drive buf size : 4718592 = 4608 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data    41 MB
Total size:       41 MB = 21502 sectors
Current Secsize: 2048
Blocks total: 2298496 Blocks current: 2298496 Blocks remaining: 2276994
Starting to write CD/DVD at speed 2 in real SAO mode for single session.
Last chance to quit, starting real write    8 seconds.Alarm clock
......
./cdrecord-prodvd: faio_wait_on_buffer for writer timed out.
=== end of output ===


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