Brendon Lloyd Higgins wrote (Wednesday 10 August 2005 10:50 am): > Recently I upgraded my disc burner to a LiteOn SOHW-1693S Dual Format > Double Layer DVD burner. I've been trying it out but I've run into problems > trying to burn DVD+R discs. Of the 50 or so tries so far (many with > different discs, all from the same manufacturer), only 4 have been > successful. > > When I try to burn a DVD+R the drive spins up, slows down, spins up again, > slows down, and cycles like this, without burning any data, for about a > minute before I get the error: > > growisofs: 5.21 > > growisofs > ----------------------- > Executing 'builtin_dd if=/home/brendon/debarchives.iso of=/dev/hdc obs=32k > seek=0' > /dev/hdc: "Current Write Speed" is 8.2x1385KBps. > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > 0/3449405440 ( 0.0%) @0x, remaining ??:?? > > :-( unable to WRITE@LBA=0h: Input/output error > :-( write failed: Input/output error > > Physically looking at the disc after this it appears that a small track on > the inside of the disc has been burned, but this seems to make no > difference to the empty/full state of the disc, or its ability to be burned > to > subsequently. For the first few tries, at least. Each time I try to write > on a disc this burned strip seems to get slightly wider. > > At first I suspected that perhaps I had managed to buy a set of discs that > my burner just didn't like. To test this hypothesis I booted into my > remnant Win98 partition, installed the burning software, and tried again to > see what it would do. The disc spun up, slowed down, spun up again, perhaps > it cycled like this a few times, and then began to burn the data, a good > step beyond what I was able to achieve on the same disc in Debian. (I'm > running Sid, BTW). > > My next thought was that perhaps the windows burning app gave the drive a > bit longer to find the start of the disc (or whatever its trying to do when > it spins up/down like that). After my attempts to find a timeout option for > growisofs failed, I did a stopwatch test to see how much time it did > actually take to start writing in the windows app and fail in growisofs. > The result: windows starts burning in about 40 seconds, well before > growisofs returns with an error (about a minute). > > So now I'm stumped. > > Do note that the problem only seems to be with DVD+R discs. CD-R, CD-RW, > and DVD+RW writing is fine (although consistently slower than advertised, > this is probably a different issue altogether). I have no DVD-R/RW media to > test, so I have no idea if they fair any better. > > I'd like some ideas about what I should try and how I can go about > troubleshooting this. > > Thanks, > Brendon Really? No-one has any ideas? Peace, Brendon
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