Hi, On Fri, 25 Jun 2021 08:44:58 +0200 "Thomas Schmitt" <scdbac...@gmx.net> wrote:
(...) > > But maybe this is to be expected when cdrskin runs with the > > modesty_on_drive=... option? > > Yes. That option causes frequent inquiry of the drive's buffer status. > At the time of above READ BUFFER CAPACITY command the free buffer > capacity was 0x041000 = 266240 bytes. That's about 77.5 percent fill of > the 0x120000 = 1,179,648 buffer bytes. > > So the buffer really does not get filled completely. In the log which > you sent me, the error ocured after 28.8 seconds of libburn run time. > At the time of above command, libburn was running for 26.803073 seconds. > (What number is to see in the microsecond timestamp []-brackets of the > failed WRITE(10) command ? Is it around 28 million ?) looking through my collection of log files these timestamps range from [ 25381890 ] to [ 29665146 ], with or without modesty_on_drive=... does not seem to make much of a difference. Maybe the time it takes for the drive to become ready after closing the tray can account for this 4 seconds. > > > So it looks more like the actual burn start brings the drive firmware to > reporting its self-invented (or "vendor specific") error code. > I would next point to the power supply situation, if it was an external > drive which gets its power via the USB cable. In that case the theory > would be that the laser beam uses too much electricty so that the > firmware processor gets a hick-up. It's an internal drive, so the power supply seems to me like an unlikely candidate. > > But as it appears now, the drive is just mad and unreliable. > I'm crossing fingers that your next one will have a long and happy life. Thanks :-) And maybe the firmware programmers of the next drive were less creative :-) If someone here can report about experience (good or bad) with specific make and models (still not sure whether the next drive will be a DVD- or BD-writer), it would be welcome... Thanks again, and have a nice day :) Michael .-.. .. ...- . .-.. --- -. --. .- -. -.. .--. .-. --- ... .--. . .-. When dreams become more important than reality, you give up travel, building, creating; you even forget how to repair the machines left behind by your ancestors. You just sit living and reliving other lives left behind in the thought records. -- Vina, "The Menagerie" ("The Cage"), stardate unknown