I have a DVD writer and CD writer, which worked quite nicely for a while. But all of a sudden they are reading and writing at 0.30 to a max of (reading cd's) 2.6 speed.
Tried looking at aspi's and all that stuff, but nothing helped...so getting pretty desperate...
Did put some info gathered via Nero Infotool below.


Drive Information
-----------------
Drive : SAMSUNG CDRW/DVD SM-352B
Type : Combo Drive
Firmware Version : T808
Buffer Size : 8 MB
Drive Letter : E:\
Location : 1:0
Mechanism : Tray
Read Speed : 52, 1 X
Write Speed : 52 X

Write CD-R : Yes
Write CD-RW : Yes
Write DVD-R : No
Write DVD-RW : No
Write DVD+R : No
Write DVD+RW : No
Write DVD-RAM : No
Buffer Underrun Protection : Yes
Mount Rainier : Yes
Modes : Packet, TAO, DAO, SAO, RAW SAO, RAW SAO 16, RAW SAO 96, RAW DAO 16, RAW DAO 96


Drive Information
-----------------
Drive : FREECOM_ DVD+/-RW8K
Type : DVD-R/RW Combo Drive
Firmware Version : 0056
Buffer Size : 2 MB
Date : ?
Serial Number : AD76FD5E
Drive Letter : F:\
Location : 1:1
Mechanism : Tray
Read Speed : 40, 32, 28, 24, 20, 16, 8, 4 X
Write Speed : 40, 32, 24, 16, 8 X


Write CD-R : Yes
Write CD-RW : Yes
Write DVD-R : Yes
Write DVD-RW : Yes
Write DVD+R : Yes
Write DVD+RW : Yes
Write DVD-RAM : No
Buffer Underrun Protection : Yes
Mount Rainier : No
Modes : Packet, TAO, DAO, SAO, RAW SAO, RAW SAO 16, RAW SAO 96, RAW DAO 16, RAW DAO 96

ASPI Information
----------------
System ASPI : ASPI is installed and working properly

WNASPI32.DLL : 4.60 (1021) 45056 bytes September 10, 1999
ASPI32.SYS : 4.60 (1021) 25244 bytes September 10, 1999
WINASPI.DLL : 4.60 (1021) 5600 bytes September 10, 1999
WOWPOST.EXE : 4.60 (1021) 4672 bytes September 10, 1999

Nero ASPI : ASPI is installed and working properly

WNASPI32.DLL : 2.0.1.56 163910 bytes April 02, 2003


Interface Information
---------------------
Adapter 1
---------
Description : Primary IDE Channel

Driver
Description : System32\DRIVERS\atapi.sys
Company : Microsoft Corporation
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Description : IDE/ATAPI Port Driver

Attached Devices
Description : Master: QUANTUM FIREBALLP LM20.5
Type : Disk Drive
DMA : On
Description : Slave: QUANTUM FIREBALLP LM20.5
Type : Disk Drive
DMA : On

Adapter 2
---------
Description : Secondary IDE Channel

Driver
Description : System32\DRIVERS\atapi.sys
Company : Microsoft Corporation
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Description : IDE/ATAPI Port Driver

Attached Devices
Description : Master: SAMSUNG CDRW/DVD SM-352B
Type : CD-Rom Drive
DMA : Off
Autorun : On
Description : Slave: FREECOM_ DVD+/-RW8K
Type : CD-Rom Drive
DMA : Off
Autorun : On

Software Information
--------------------
Operating System : Windows XP Professional (5.01.2600 Service Pack 1)
ASPI : Nero Aspi Library 2.0.1.56 Ahead Software AG

Description : Nero Burning ROM
Version : 6, 0, 0, 0
Company : Ahead Software AG
Version Check : Ok

Description : PowerDVD
Version : 4.0.1221
Company : CyberLink Corp.


Hardware Information
--------------------
Memory : 767 MB
Sound : Creative Sound Blaster PCI
Video : Rage Fury Pro/Xpert 2000 Pro (Microsoft Corporation)

Driver Information
------------------
Driver : ACPI
Description : ACPI Driver for NT
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Company : Microsoft Corporation

Driver : ADM8511
Description : ADM8511 USB To Fast Ethernet Adapter NDIS 5.0 Miniport Driver
Version : 2.04.2001.0719 built by: WinDDK
Company : ADMtek Incorporated

Driver : AmdK7
Description : Processor Device Driver
Version : 5.1.2600.1152 (xpsp2.021217-1051)
Company : Microsoft Corporation

Driver : Arp1394
Description : IP/1394 Arp Client
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Company : Microsoft Corporation

Driver : ASAPIW2K
Description : ASAPI
Version : 6, 0, 2, 27
Company : Pinnacle Systems GmbH

Driver : Aspi32
Description : ASPI for WIN32 Kernel Driver
Version : 4.60 (1021)
Company : Adaptec

Driver : atapi
Description : IDE/ATAPI Port Driver
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Company : Microsoft Corporation

Driver : ati2mtaa
Description : ATI RAGE 128 Miniport Driver
Version : 6.13.10.5019
Company : ATI Technologies Inc.

Driver : audstub
Description : AudStub Driver
Version : 5.1.2600.0 (XPClient.010817-1148)
Company : Microsoft Corporation

Driver : Cdfs
Description : CD-ROM File System Driver
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Company : Microsoft Corporation

Driver : Cdrom
Description : SCSI CD-ROM Driver
Version : 5.1.2600.1106 (xpsp1.020828-1920)
Company : Microsoft Corporation