Andy Polyakov <appro@fy.chalmers.se>'s letzte Worte waren: > > Is it possible that growisofs can't write on a certain type of media > > while Nero can? I don't have problems with Nero, but when using > > growisofs (via k3b) I'm always getting the message > > > > /dev/ide/host0/bus1/target1/lun0/cd: engaging DVD-R DAO upon user > > request... > > :-[ PERFORM OPC failed with SK=3h/ASC=73h/ACQ=03h]: Input/output > > error > > > > even with the very same DVD (simulation failed in k3b but succeded > > in Nero). > > Even same unit? I mean is it dual-boot system or do you attempt same > media in two different burners? Well, it might appear as dumb > question, but what you say is rather extraordinary, so I have to > ask... No, I see that your question is fully ok. Yes, it's dual boot. > > I usually thought this error message indicates bad media or media > > that is not supported by the writer's firmware, > > So did I. 3/73/03 stands for "POWER CALIBRATION AREA ERROR" and is > considered as "serious offence." What happens if you minimize the > recording speed with -speed=1? As for error per se. Same error - OPC fails even at -speed=1. > There were couple of > reports that skiping OPC [by modifying the code] helps some units, but > I failed to find any regularity in reports. OPC by itself is poorly > documented, so I'm not sure if it's required or "right thing" to do in > > all situations [as discussed at the end of > http://fy.chalmers.se/~appro/linux/DVD+RW/-RW/]. A. I'm a complete loser in patching source code I don't understand, but what I did is find the line that said sperror ("PERFORM OPC",err), in growisofs_mmc.cpp, commented it out including the following "exit" line (thought that might me get a bit further - not knowing the tiniest bit about DVD writing). That did part of the job (simulation no longer fails (!), the writing itself still fails with /dev/ide/host0/bus1/target1/lun0/cd: "Current Write Speed" is 4.1x1385KBps. 0.02% done, estimate finish Mon Jul 26 08:58:12 2004 0.04% done, estimate finish Sun Jul 25 22:56:44 2004 0.07% done, estimate finish Sun Jul 25 19:55:02 2004 0.09% done, estimate finish Sun Jul 25 18:08:57 2004 :-[ WRITE@LBA=8d0h failed with SK=3h/ASC=73h/ACQ=03h]: Input/output error :-( write failed: Input/output error /dev/ide/host0/bus1/target1/lun0/cd: flushing cache I suppose that's because i messed up the whole OPC thing and didn't turn it off properly, can someone tell me how to do this correctly? I recommend a switch in further versions of dvd+rw-tools that allows to switch off OPC, do you think this is possible? I would love to check that one out... And I would love to know why Nero doesn't have a problem with OPC on the very same medium. After the unsuccessful writing attempt, dvd+rw-mediainfo is still the same: INQUIRY: [SONY ][DVD RW DRU-500A ][2.1a] GET [CURRENT] CONFIGURATION: Mounted Media: 11h, DVD-R Sequential Current Write Speed: 4.0x1385=5540KB/s Write Speed #0: 4.0x1385=5540KB/s Write Speed #1: 2.0x1385=2770KB/s Write Speed #2: 1.0x1385=1385KB/s Speed Descriptor#0: 00/2298495 R@2.0x1385=2770KB/s W@4.0x1385=5540KB/s Speed Descriptor#1: 00/2298495 R@2.0x1385=2770KB/s W@2.0x1385=2770KB/s Speed Descriptor#2: 00/2298495 R@2.0x1385=2770KB/s W@1.0x1385=1385KB/s READ DVD STRUCTURE[#10h]: Media Book Type: 25h, DVD-R book [revision 5] Media ID: / Legacy lead-out at: 2298496*2KB=4707319808 READ DVD STRUCTURE[#0h]: Media Book Type: 25h, DVD-R book [revision 5] Media ID: / Last border-out at: 0*2KB=0 READ DISC INFORMATION: Disc status: blank Number of Sessions: 1 State of Last Session: empty Number of Tracks: 1 READ TRACK INFORMATION[#1]: Track State: blank Track Start Address: 0*2KB Next Writable Address: 0*2KB Free Blocks: 2298496*2KB Track Size: 2298496*2KB Greetings and thank you for giving that hint Thomas -- printk("%s: huh ? Who issued this format command ?\n") linux-2.6.6/drivers/block/ps2esdi.c
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