I might have different or same experience - you be the judge of that.... I recall this happening in the past on certain DVDs with copy protection - they would insert real disk bit error on the disk at the beginning of the stream, later even in TOC. When the disk was in PC - that would start to re- read and re-red the faulty sector. Real DVD drive either corrects it using CRC and moves on, or avoids playing it by executing the program in the menu.
My solution was to use SATA DVD and/or watch the CPU as it reads the disk and if it goes to 100% on wait or if I hear the DVD drive re-reading - I pressed Ctrl+C and most of the time it would interrupt the process. I then tried playing the disk using mplayer, mpv or vlc - often "mplayer dvdnav:" would be able to play it without trouble. If I'd want to back up such DVD, I would note title number while playing it and then dump the right stream using mplayer or mpv, which I would later feed to HandBrake as normal. Thinking of HandBrake - sometime selecting/un-selecting "Use dvdnav( instead of libdvdread) would help to resolve the issue. Also installing the latest HandBrake unstable can often help, check your repositories for unstable version. That being said, one can interrupt mplayer or mpv with Ctrl+C avoiding hangs or crashes, so I find dumping the DVD mpeg2 stream relatively reliable in troublesome situations. I hope that this is helpful to your particular situation, Tomas On Saturday, May 21, 2016 10:13:48 AM John Jason Jordan wrote: > >On Sun, 2016-05-15 at 21:17 -0700, John Jason Jordan wrote: > >> About a week ago I added a USB 3.0 external DVD drive to my laptop. > >> It has been working fine. Today I disconnected it when I took the > >> computer to the Clinic. Also, before going to the Clinic I installed > >> all the recent updates for the OS (Xubuntu 14.04). There were a lot > >> of updates, including a new kernel. The laptop functioned fine at > >> the Clinic. > >> > >> Back home I reconnected the new DVD drive, and used it to rip and > >> encode a DVD from my collection. This went perfectly. Then I started > >> to rip and encode a second DVD, but this one hung at 85%, probably > >> due to the media being scratched. I was encoding with Handbrake, so > >> I stopped the encoding, but Handbrake would not stop. This has been > >> a bug in Handbrake for a long time, although the upgrades I did this > >> morning included a new version. In the past I could simply kill > >> Handbrake, then manually eject the DVD. When I did so this time the > >> computer hung - no keyboard, no mouse. (No I don't have a way to SSH > >> into it.) > >> > >> I powered down and restarted it, then I cleaned the DVD media and > >> tried again. And once again, Handbrake hung on about 85%. I killed > >> Handbrake again, but this time the DVD light was still flickering. > >> So I pressed the eject button several times, and was suddenly > >> greeted with a black screen full of unintelligible command-line type > >> text, and two lights were flashing (hard drive and numlock? - can't > >> remember which is which). > > On Wed, 18 May 2016 11:29:41 -0700 > > Tim Wescott <[email protected]> dijo: > >This has been happening to me off and on since the upgrade to > >3.16.0-71-generic (64-bit). 70-generic would just randomly panic, so > >until 71 came out I was running 69-generic. ... > > > >Oh, I know why I haven't reported the bug -- it's because when you try, > >Ubuntu's bug base put you on this goddamned web-page merry-go-round, > >with buttons that you would think would put you into a bug report form, > >but instead go to things like a generic page on reporting bugs, a page > >on how to tell if you have a bug (my computer locks up -- duh), and god > >knows what else because at that point I figured that Ubuntu is trying > >to be like Microsoft. > > Today it happened again and, as before, it involved the new USB 3.0 DVD > drive. The scenario was identical to the first event; i.e., I had to > kill handbrake because it had hung on encoding a DVD, and then I had to > unplug the drive because it wouldn't stop trying to read the DVD, nor > would it eject the media. A few moments later the keyboard and mouse > froze, although no flashing lights this time. > > Tim reports above a similar problem with kernel 3.16.0-71-generic and > that he uses 3.16.0-69-generic instead. Although my Xubuntu 14.04 is up > to date, Tim is way ahead of me: > > uname -a > Linux Devil-Bonobo 3.13.0-86-generic #130-Ubuntu SMP Mon Apr 18 > 18:27:15 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux > > This computer has been upgraded to new kernels numerous times, so I'm > sure there are other kernel options in the Grub boot menu, that haven't > tried. I should add that I have a 128GB USB 3.0 flash drive that I > mount and umount constantly with never a problem, so it may be that the > problem resides in the new DVD drive. > > Later today I will search the net, including the Ubuntu forums to see > if I can dig up any more clues or workarounds. Having to reboot every > few days is not acceptable. > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
