ImgBurn write rate

[ojdidit]

I've noticed that blank media that ImgBurn says are supported at say 16x and that I have chosen to burn at say 8x, will start the burn at 4x until reaching the 10% to 15% complete, when write speed will increase to my chosen 8x. This happens with multiple media brands, on different computers with different brand drives.

What is ImgBurn up to?

[LIGHTNING UK!]

ImgBurn isn't up to anything, this is just how some drives burn. Very few will start at a speed and end at that same speed (unless you're burning very slowly). Speed increases as the burn goes along. Some increase at a steady rate, others 'jump' the speed up as the burn reaches certain waypoints (zones).

Look it up on Google.

Z-CLV, CLV, CAV etc.

[ojdidit]

But I was expecting an explanation similar to ' ImgBurn is just scanning the media and determining the best speed for any given sector'. I see more than one drive doing this. My prior experience was with Roxio easy Cd and Dvd creator, which didn't seem to do it.

Thanks for the reply.

[blutach]

Most modern drives "step" up in speed. Don't sweat it.

Regards

[LIGHTNING UK!]

The other tools probably just tell you the speed you tell them!

i.e. if you set the speed to 4x, it'll report it's burning at 4x when it could actually be burning at something totally different.

I don't use those apps so I can't say for sure.

All you need to know is that it's totally normal and nothing for you to concern yourself with.

Once the initial 'write speed' command has been sent to the drive, the actual write rate at any given point on the media is totally controlled by the drive. The burning software simply provides the drive with a steady stream of data to burn.