I have just had the same issue at a MUG-meeting yesterday on different computers. I would say that 10.5.3 is the culprit here. Best, Kim Den 11/06/2008 kl. 23.25 skrev Dr. Trevor J. Hutley: > I also tried Verbatim CD-R, but got the same result.... :-( > I restarted the computer before each try. > > Completely puzzling. > > My Powerbook is 57 months old, and I have never seen this before > today. > > Trevor > > > On 11 Jun 2008, at 20:38, Don wrote: > >> Ditto on my Intel iMac... I get the same message as stated by the >> original poster. I can burn CDs but not DVDs. >> >> Don >> >> Scott Brown wrote: >> >>> Ya, I have a 12 inch 1.5ghz Powerbook that does the same thing. >>> About, oh two weeks ago I think, someone stated that it was a >>> known bug/problem. I found a report on it on apple.com (before >>> the last OS update). It seems as if it is low on the list of >>> things to fix. >>> >>> I can't burn CDs or DVDs, also DVD Player will crash the laptop, >>> forcing me to use VLC to watch movies. >>> >>> -Scott >>> >>> >>> On Jun 11, 2008, at 10:16 AM, Dr. Trevor J. Hutley wrote: >>> >>>> >>>> I am trying to write a CD-R on my 2003 aluminium G4 Powerbook >>>> (UJ-816 DVD drive) and got this message: >>>> >>>> the disk can't be burned, because the device failed to >>>> calibrate the laser power level for this medium >>>> >>>> I tried 2 different "imation" CDs, same result. >>>> >>>> I have never seen this issue / message before. >>>> has anyone else seen this ? >>>> >>>> Is it software, my drive or the CD? >>>> >>>> regards, Trevor