Why differents speeds?

Hello, everyone! :slight_smile:

This is certanly one of the most stupid questions ever posted on CDF… but i realy wish to know how it works.

When we want transfer any data from a CD or a DVD to an Hard Drive instaled on the computer we can use any speed doesn’t matter if it is 4x or 52x, (without data quality loose).

On the contrary, when we want transfer data from the HD to a CD or a DVD media, we must take care to choose the exact speed, in order to have a good burn.

My question is: Why this difference? Certanly there are good reasons to be like that… and what i’d like to know is which these differences are… :o

May someone be so kind and let me know the reason how it works like this?

Thank you very much in advance. :bow:

Writable discs cannot be written at any speed, so you are forced to set a burning speed to avoid a coaster.

If you watch the disc box, you can see that discs are certified for a certain speed. Some discs (nowdays more difficult to find) were certified to be written only at 4x, or 8x max, so it is not always safe to write these discs at a higher speed.

Even a 16x certified disc, moreover, very often can be written better (i.e. with less errors at the end of burn) at a lower speed (12x or 8x).

Basically, each disc mediacode has an “optimal” burning speed, so it is necessary to select the proper speed when you burn a specific media.

Hard disks, on the other side, have a very different mechanism to write data on the platters, and this allow to read and write at a much higher speed compared to optical drives.

I hope that this makes sense :slight_smile:

I hope that this makes sense :)[/QUOTE]

Hello, geno! :slight_smile:

My dear Friend, thank you very much for your help! :clap:

All the best for you. :flower:

You’re welcome :bigsmile: