DMA disabled

When I run k3b I keep getting a message that DMA is disabled and I should enable it to greatly improve DVD writing etc. It says use the command

hdparm -d 1 /dev/hdd

but when I type this in as a command line I’m told that hdparm is unrecognised.

What am I doing wrong, or fdailing to do please ??

On 10/04/2008 toastrack wrote:
> but when I type this in as a command line I’m told that hdparm is
> unrecognised.

You need to be root. S become root first:
su
hdparm -d 1 /dev/hdd

Uwe

Many thanks! Job done.