Problems with the recorder

The speed of burning is determined by the slowest of the burners and burning discs.

If the recorder is 20x and the burning disc is 16x, the maximum burning speed is 16x without overburning; On the contrary, if the recorder is 8x and the burner is 16x, then the maximum burning speed is 8x.

Of course, all this is premised on the reliable quality of the burning disc. Another premise is that the recorder's firmware has the information of this burning disk, otherwise it still can't reach the maximum burning speed, and can only be burned at a speed that the recorder thinks is safe.

So your situation is very simple, your recorder reaches a maximum of 20x, but your burning disk does not, or your recorder's firmware does not have the information of the burning disk you use, and the result is reduced to 16x or 8x usage.

This is *** The quality of the burning disc is not good, most recorders will have this situation, and the speed of burning is determined by the recorder's identification of the disc. When the recognition speed is not high, you can press out the disc and go in to re-identify it, and the speed will change. It is recommended to choose low speed burning, when high power burning, the laser diode is easy to age under high power conditions, and when the disc quality is not good, the high speed burning effect is worse.

The higher the head level of the recorder, the faster the burning, of course.

However, if the disc quality is poor, it will also affect the speed.

Then there is the problem of the efficiency of your computer's CPU.

A personal opinion:

Non-rewritable disposable discs (hereinafter referred to as CD-R) and rewritable (hereinafter referred to as CD-RW) with. There is no end marker.

It does not matter. The difference between reusable and non-reusable is not in the end mark, CD-RW will also add an end mark at the end of the disc burning, and the CD-R can also choose not to add the end mark in the burning software when burning, so that the disc that is not full can be engraved next, that is, the so-called "resumable".

Rewritable discs overwrite the original material when remastering, rather than adding it to the engraved content.

Let's talk about your problem again :

If you don't change the recorder and change the parameters of the burning software, and the two discs have the problem you said, then I think it should be caused by the working principle of CD-R and CD-RW. When burning discs, they are burned to the disc with a laser, but the difference between CD-R and CD-RW is in the vernacular, that is, CD-RW burns "shallow", and it has been repeatedly burned in the later stage (which is why the replicable disc also has a number of reproductions), and the CD-R burns "deep", because it does not need to be changed, all at once.

I think I've got your question out. I hope you're satisfied.