Minimum burning speed on a Samsung drive

[Secrom]

Hey,
For the life of me, that burner (see signature) won't go below 10x on CD-RWs no matter what I choose.
I've tried ImgBurn in WindowsXP and Brasero 0.6.1 in Ubuntu 7.10, in both cases the burning speed is the same. Trying to get something like 4x for my ISO files.
The drive uses a SATA interface, though the device manager in WinXP doesn't list any SATA item at all. I've checked the motherboard manufacturer's website, the only SATA related download is a floppy to install Windows on a Raid HDD config.
I might try Nero DriveSpeed but in the meantime, does anyone in here have the slightest idea about what's going on here? Hehe... I was told that as of late, the laser on burners is so powerful that burning at a snail's pace isn't that big of a deal anymore to achieve durable CDs, but still (being paranoid and all...)

[DanceMan]

I burn at slower speeds to make cdr's more readable on older cdroms, but you've got me beat. The speed range of the media will be part of the equation, but perhaps 4x is simply lower than newer units can burn.

[ELF2000]

Looks like Samsung only list the maximum transfer rate your drive can red/burn. http://www.samsung.com/au/consumer/d...EBN&fullspec=F

Have you tried to burn a image at your current speed?

My drive (see sig) can burn as low as 4x for dvd and cd.

[Secrom]

Have you tried to burn a image at your current speed?

3 different CDRWs, one of them 3 times (while testing speeds). All came out valid AFAIK, though still not sure about the longevity of the burn.