Hi All

In my MDD Dual 1.25G I have 2 burners, the stock combo in the upper bay and a Pioneer 108 in the lower.

Getting mismatch of byte/verification errors from Toast 6 and the Disc Burner/Finder when burning DVDs on the 108 and Cds on the combo. Have tried setting master/slave vs cable select and no diff.

Not sure if hardware or software. On 10.3.9 and the 108 is active as has been in another G4 with no hassles.

Burn will complete, and disc is readable and appears ok.

Tower and drives do get warm from the power supply, not sure if that is adding to issue.

Makes no difference if i use good(TDK) or crap media or rw or r. Not using any apps in background. Failures occur at varying spots/times.

Cheers

Nat

Heat can definitely cause Toast / burning errors and dual processor MDD's are not cool runners. I used to have a DP 1.25 myself.

If you haven't already, update to the latest version of Toast 6 and Toast 7 would be better. 7.0.2 is current now.

Also, look into PatchBurn:

http://www.macupdate.com/info.php/id/16466

It's not a firmware hack, quite safe to use and can be uninstalled.

Hi,

I have a similar setup but with a 109 in the bottom. I cant ever remember making a coaster - ever! out of about 400 discs i guess.

neil

Hi Nat,

I suppose the only way to be sure heat isn't the issue is by unplugging a drive at a time, burning a CD/DVD and seeing what happens. Pointing a desk fan at the drives could also do, but make sure it's also over the CPUs as well - otherwise it'll get a little warm.

Also try updating the firmware of each drive, and try another IDE cable.

JB

With more time have tried a few things.

HEat seems to be the problem, as I can do two or three burns in the first 45mins that the G4 is on from cold. no errors etc. Once the machine gets hot our come the errors.

This holds for either drive.

These things runs so damn hot its not funny.

Its about 50 degrees plus in the case.

I also suspect the heat has caused a few kernel panics.

Have reduced the PS load by removing drives etc, but still no avail. CPUs hover at 53, drives b/w 35 and 40.

My room heads up to 30 too, its gonna be great in winter!

Time for a PCI slot extractor.