What does dma mode mean - Nintendo DS Lite

if you have xp :device manager-ide ata/atapi controller-select your hdd controller-properties-advance sttings-see if are dma available, if not set it.

1.
Open Device Manager.
2.
Double-click IDE ATA/ATAPI Controllers to display the list of controllers and channels.
3.
Right-click the icon for the channel to which the device is connected, select Properties, and then click the Advanced Settings tab.
4.
In the Current Transfer Mode drop-down box, select DMA if Available if the current setting is "PIO Only."
If the drop-down box already shows "DMA if Available" but the current transfer mode is PIO, then the user must toggle the settings. That is:
• Change the selection from "DMA if available" to PIO only, and click OK.
• Then repeat the steps above to change the selection to DMA if Available.

you are trying which is not possible. all optical drives work in PIO mode ... hard disk typically run in DMA mode which is bypassing cpu to access memory directly without calling daddy CPU.... though i am amazed who offered you registry fix for this.

You can download a software fix for it:
http://winhlp.com/node/10
It's called resetdma.vbs ,download it and then install it.
The site also has some tips if the software doesn't help you.

Go to Control Panel - click on System - Click on Hardware - Click on Device Manager - click on IDE ATA/ATAPI Controller.
Then right click on Primary IDE Chanel - then click on Properties - Then Advance Settings - For the Device 0 in Transfer Mode select DMA if available. Then Click OK.
You can also select DMA for Device 1 too

try this. go to BIOS, from your main page choice sata1 and press enter then press DMA MODE and chanege to UDMA5 press enter F10 save and exit

Hi

MS-6163 Pro Systemboard IDE controller utilises Intel 82371EB PCI Chipset and supports up to Ultra DMA 33 operation mode.
MS-6163 Pro - http://www.msicomputer.co.uk/index.php?func=proddesc&prod_no=340&maincat_no=1

**** Other MS-6163 ****
MS-6163FC Systemboard IDE controller utilises Intel 82371EB PCI Chipset and supports Ultra DMA DMA 33/66 operation modes.
MS-6163FC - http://www.msicomputer.co.uk/index.php?func=proddesc&prod_no=341&maincat_no=1

MS-6163VA - Systemboard IDE controller utilises VIA VT82C596B Chipset and supports Ultra DMA DMA 33/66 operation modes.
MS-6163VA - http://www.msicomputer.co.uk/index.php?func=proddesc&prod_no=342&maincat_no=1

MS-BX Master Systemboard IDE controller utilises Intel 82371EB PCI Chipset and supports Ultra DMA DMA 33/66 operation modes.
MS-BX Master - http://www.msicomputer.co.uk/index.php?func=proddesc&prod_no=319&maincat_no=1

Regards
Mike

There is a whole bunch of helpful stuff at http://www.tomshardware.com/forum/196090-32-lite-dvdrw-160p6s-burning-problems
Seems that the drive may overheat, and will need replacement if in warranty. Some advice given: get another type drive. Also, check the device manager and make sure it's running in DMA mode and not PIO mode. If you have an nForceX mobo and using the SW IDE driver, reinstall with the normal IDE driver and try again. In device manager, check under IDE ATA/ATAPI controllers. Right-click and select properties on the IDE Channel your DVD recorder is attached to. Transfer mode should be set to "DMA if available". Current transfer mode should be "Ultra DMA Mode 4". If it says Mode 2: Your drive may be experiencing problems which are causing windows to drop its speed. There is a support article with a fix. To surmize:

After the Windows IDE/ATAPI Port driver (Atapi.sys) receives a cumulative total of six time-out or cyclical redundancy check (CRC) errors, the driver reduces the communications speed (the transfer mode) from the highest Direct Memory Access (DMA) mode to lower DMA modes in steps. If the driver continues to receive time-out or CRC errors, the driver eventually reduces the transfer mode to the slowest mode (PIO mode).

If you have dropped from DMA mode 4 to DMA mode 2, and you have a spare ribbon cable, you may want to try swapping it out. Also, if there is another device on the same channel as the DVD drive, try disconnecting it.

I guess that your CDROM Device doesn't have DMA (Direct Memory Access) enabled.

From the Microsoft Knowledge Base Article:

To enable DMA mode using the Device Manager

1.

Open Device Manager.

2.

Double-click IDE ATA/ATAPI Controllers to display the list of controllers and channels.

3.

Right-click the icon for the channel to which the device is connected, select Properties, and then click the Advanced Settings tab.

4.

In the Current Transfer Mode drop-down box, select DMA if Available if the current setting is "PIO Only."
If the drop-down box already shows "DMA if Available" but the current transfer mode is PIO, then the user must toggle the settings. That is:

•

Change the selection from "DMA if available" to PIO only, and click OK.

•

Then repeat the steps above to change the selection to DMA if Available.