Buffer Underruns on disc burns in OS X where before there was none

help !

i'm using :
G4 Dual 1 ghz
1 gb RAM
Toast Titanium/OS X tools
OS X ver : 10.3.7
LaCie Firewire CD/DVD burner (and stock Pioneer cd/dvd burner)


my story :
Have been successfully burning CD's and DVDs at all speeds on this
computer in Toast and iTunes running in OS X for over a year....

that is... until about 2 or 3 weeks ago. (I'm not remembering if it was
after a specific os x update). All of a sudden, i'm getting buffer
underrun errors at ANY attempted burn speed, with both the external
firewire La Cie drive and the stock/internal Pioneer drive that came
with the G4. Not a single burn succeeds. no exceptions whatsoever. I've
tried rebooting... i've tried using Toast's buffer underrun protection,
as i said - i tried burn speeds as slow as 1x, and ... nothing. 100%
failure all the time.

, and when attempting to burn data cd's using OS X/Finder or iTunes,
failures occur in seemingly the same fashion (early in the burn, after
what seems like "lost" communication with the drive being used to
burn), but obviously with variations on the language of how the error
is reported.

i was able to boot into OS9 and do a successful burn with the internal
drive, but was not able to test in OS9 with the external FW drive...
for simple lack of time to install a compatible sw package. either way,
the fact that i could do the burn w/ the internal drive in OS9 is
likely evidence that the hardware is not the problem...

... it just fails to work in OS X.

anyone else experiencing this ? could this be related to the most
recent version(s) of the OS ? do firmware updates need to be installed
for the burners ? am i going to have to revert back to earlier versions
of OS X which did not give me these problems... i don't want to have to
go through that unless it's absolutely necessary.
any help anyone could provide would be much appreciated.
thanks
dan

 

My last 3 burns to DVD DL data disks (at $10 ea.) using my LaCie
firewire burner failed with buffer underruns. I haven't tested any
other formats or drives yet.

This is after the update to 10.3.7. I don't recall seeing any problems
before the update with any burner including the LaCie.

 

My last 3 burns to DVD DL data disks (at $10 ea.) using my LaCie

well... i can say with confidence that i was getting failures in
10.3.6. I only did the 10.3.7 update yesterday, and have been having
the problem for weeks, and it was not solved by 10.3.7.

thanks for letting me know i'm not the only one ! keep me/us posted if
you should stumble onto the cause or solution.

thanks again,
dan

 

Just wanted to say I've been having the same types of buffer underrun
problems with my 12" PBG4 on the internal superdrive lately. It used
to burn fine at the maximum speed. I dropped the speed down to 4x and
it got through one disc at least.

Anybody heard anything official from apple?