MTU.Community - Unexpected ASPI error (04h 00h 00h)

I'm making backups of my karaoke CDG discs. After a few discs, I get

Error: 'WRITE' command failed on device 2:4:0
Unexpected ASPI error (04h 00h 00h)

At that point the CDR drive totally locks up -- even the front panel eject button doesn't work. A system power-down is required to reset the CDR drive.

This has happened twice so far. I have successfully burned 20 discs. I am using 700 MB unlabeled Mitsui Silver CDR blanks.

I'm using V2.400 (downloaded last week) and the MTU-installed ASPI driver from that.

Here's my system info:

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Plextor Info Utility V1.19
Copyright (C) 1999-2003 Plextor SA/NV
07 August 2003
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Software Information
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Operating system : Windows 2000 V5.00.2195 Service Pack 4
Windows ASPI (wnaspi32.dll) : Adaptec ASPI for Win32 (95/NT) DLL, V4.71 (0001) ( not used by PlexTools )
Roxio ASPI (cdral.dll) : Roxio CDRAL DLL, V6.0.0.171 ( not used by PlexTools )
Ahead ASPI (wnaspi32.dll) : n/a
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Hardware Information
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Host Adapter: 0 SCSI ID: - Maximum # Targets : -
Description :
Type :

Port Driver : atapi.sys
Provider :
Description : IDE/ATAPI Port Driver (Microsoft Corporation)
Location : D:\WINNT\system32\drivers\atapi.sys
Version : 5.00.2195.6699
Date :

ID 0: Maxtor 3 2049H2 VYAH8
-
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Host Adapter: 1 SCSI ID: - Maximum # Targets : -
Description :
Type :

Port Driver : atapi.sys
Provider :
Description : IDE/ATAPI Port Driver (Microsoft Corporation)
Location : D:\WINNT\system32\drivers\atapi.sys
Version : 5.00.2195.6699
Date :

ID 0: WDC WD40 0BB-32AUA1 V18.2
-
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Host Adapter: 2 SCSI ID: 7 Maximum # Targets : -
Description : Adaptec AHA-294X/AIC-78XX PCI SCSI Controller
Type : SCSI and RAID controllers

Port Driver : aic78xx.sys
Provider :
Description : Adaptec CHIM Family SCSI miniport (Microsoft Corporation)
Location : D:\WINNT\system32\drivers\aic78xx.sys
Version : v2.20b
Date :

ID 0: SONY SDT-9000 V0600
-

ID 4 (E:) PLEXTOR CD-R PX-W1210S V1.06 (S/N:223659) (44.42.28D)
Read speed: 14-32 X CAV
Jumper Settings: 00111000
Buffer under run proof enabled
AudioCD,1 session(s),14 track(s),56:25.57

ID 5: Scanner V1.80
-

USB Device Information:
-----------------------

# Host Controller \\.\HCD0 found.
Intel 82371AB/EB PCI to USB Universal Host Controller

Extended Information:
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PlexTools Registry Information
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General
-------
Key not found!

CD Info
-----------
Key not found!

Digital Audio Extraction
------------------------
Key not found!

CD Copy
-------
Key not found!

AudioCD Maker
------------------
Key not found!