Reading graphs...

[burf]

I just bought a new burner (Pioneer 112D), and as I look at the graphs, they're very jagged.

I would expect something more smooth, but of course, I really haven't any idea.

I'm just getting a sense that something's not right.

 

So, I was wondering if someone could take a look at the graph of a burn, & PiPo scan, & give me an idea, if all's cool, or if there are any problems?

Or if not, does anyone know a forum, where I could post these graphs, and get feedback on them?

 

I'd like to know, so I can exchange the drive, if there's a problem.

 

Thanks so much for any help!!

[LOCOENG]

Pioneers are notably some of the worst scanning drives there are and the data that comes from DVDInfoPro or CD Speed should really be taken with a grain of salt...your QS of 86% would probably much higher using another drive such as Lite-On, Samsung, NEC or BenQ. If your firmware is current and your are quality discs, which you are, the results you are getting should be just fine.

[LIGHTNING UK!]

The one on the left looks bad because you seem to be using your PC for some heavy duty tasks during the burn - i.e. the CPU usage is very high.

 

Leave the machine alone whilst burning and it'll smooth out.

 

In fact, as the red verify cpu% line goes up as the light blue verify speed line does, I wonder if you've got the drive in the correct DMA mode? Is it on a decent 80 wire cable?

 

It shouldn't be that taxing on the CPU - well, not unless it's a REALLY old machine anyway!

[burf]

I actually wasn't doing anything, when I burnt that.

The computer I used is 5+ years old... Athlon XP 1800 (1500 MHz), and 768 MB RAM.

I have my C: drive set to Ultra DMA5, and the burner set to Ultra DMA4... the disk is master, and the burner is slave. The cable is 80-pin & pretty new.

 

I did another burn this morning, & have attached the graphs.

As a test, this time I disconnected my DSL, and closed my AV & firewall... and closed everything non-essential in task mgr.

They look better, with my very limited knowledge on what to look for.

But I'd still be grateful, if I can get some feedback.

 

Part of me wants to exchange the drive, either for another one, or the Lite-On I was looking at

(LH-20A1H), so any help is appreciated.

Thanks!!!!

[LIGHTNING UK!]

Still at 80% CPU when reading at only 12x! I imagine it would die before it reached 16x

[burf]

What would die, the cpu or burner?

 

Aside from the cpu, does it look like the drive is a keeper?

 

Thanks for any help!

[LIGHTNING UK!]

Well if you follow the curve of the graph, if it's already at 80% cpu usage and it's only burning/reading at 12x, by the time it gets to 16x you'd be past 100% - which of course isn't possible!

 

So I guess the drive wouldn't ever actually reach the full 16x, or at least it wouldn't be able to maintain that speed without the buffers going a bit mad.

 

The drive itself is fine, don't worry about that.

[burf]

Thanks Lightning.

 

I used to burn at 12-16x, when I was using some Verbatim discs, when I first started burning.

Then I realized fast wasn't as important, as quality.

The cpu may be a bit tired... it's worked overtime, over the past few months, as I've been doing a lot of encoding.

A new computer will take care of that.

 

Thanks again for your help... and for ImgBurn!!