UbuntuHelp:RestrictedFormats/PlayingDVDs
来自Ubuntu中文
目录
Introduction
Most commercial DVDs are encrypted with CSS (the Content Scrambling System), which attempts to restrict the software that can play a DVD. By installing the libdvdcss2 package you can play encrypted DVDs with:
- Kaffeine, the Kubuntu video player
- MPlayer
- xine
- Totem-xine
- VLC media player
- Ogle
Note : While Totem-gstreamer can play a DVD automatically when it is inserted into the DVD drive, it cannot navigate the DVD reliably (see Bug #41335). If you use vlc media player you can navigate through the menu, forward in the movie and select subtitles. Just select open disc, probe Disc(s) and click ok.
Installing libdvdcss
Legal Warning: Check with your local laws to make sure usage of libdvdcss2 would be legal in your area.
Ubuntu 9.04, 9.10 and 10.04 (i386, amd64)
- Install the libdvdread4 package (no need to add third party repositories) via Synaptic or command line:
sudo apt-get install libdvdread4
- Then open a terminal window and execute:
sudo /usr/share/doc/libdvdread4/install-css.sh
- Rebooting may be necesarry.
Ubuntu 8.10 (i386, amd64)
- Install the libdvdread3 package (no need to add third party repositories) via Synaptic or command line:
sudo apt-get install libdvdread3 gstreamer0.10-plugins-ugly
- Then open a terminal window and execute:
sudo /usr/share/doc/libdvdread3/install-css.sh
Ubuntu 8.04 (i386)
- Install the libdvdread3 package (no need to add third party repositories) via Synaptic or command line:
sudo apt-get install libdvdread3
- Then open a terminal window and execute:
sudo /usr/share/doc/libdvdread3/install-css.sh
Ubuntu 8.04 (amd64)
- Open a terminal and type
sudo apt-get install build-essential debhelper fakerootpress the enter key.
- Then type
sudo /usr/share/doc/libdvdread3/install-css.shpress enter again
- When it asks you, press enter to continue and it will build and install libdvdcss2
Setting DVD Region Codes
If your DVD player regularly locks up when you try to play back a DVD, your DVD player probably does not match the DVD's Region Code. Region Codes are a form of vendor lock-in. For example, you cannot play a DVD published in Japan (Region 2) on a DVD player in the United States (Region 1) without changing the Region Code of the DVD player (unless you own a region free DVD player). You can view or modify the Region Code of your DVD drive with the regionset tool.
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The author of regionset writes: "On delivery, most DVD drives have no region code set. The drive firmware allows you to change the region code, but on nearly all drives you are limited to five (5) changes. After the fifth change, the DVD drive will stay fixed on that code -- on some drives you can upgrade the drive firmware and have then additional five changes, on other drives you won't be able to change the region code any more."
- Most players (eg mplayer/vlc) with most DVD drives are able to ignore the value of the region setting. However, it must have been set to something; if it hasn't been initialized, even non-region-restricted DVDs won't play. Also, if it is necessary to crack the CSS key, it can sometimes take up to a few minutes to do so.
- To change the Region Code of your DVD player, insert a DVD from your region in the DVD player, and do the following:
- Install the regionset package from the Universe repositories.
- To launch regionset, issue the command
regionset
- See the Free Formats page for more information
Troubleshooting
- Jerky Playback
If DVD playback is noticeably choppy or burning a CD/DVD is slower than it should be, then you may need to enable DMA transfer for the DVD drive. See the DMA (Direct Memory Access) page for details.
- Decryption errors
If you've installed libdvdcss2 as described above, it should Just Work. However, I had to `chmod 660 /dev/sr0; chgrp cdrom /dev/sr0` (replace with the path to your dvd drive) in order to get videos to play.
- No Sound
If you don't hear any sound, click System -> Preferences -> Sounds. Then click a sound in the bottom list, and make sure that it's not already selected. You should hear the sound you selected. If not, make sure your speakers are working and that your volume is up. Try clicking another sound in the list, after ajusting your volume. Also make sure your speakers are working. Once you're done, select the sound it was on before and click OK. Try downloading VLC Media Player by clicking Applications -> Ubuntu Software Centre or Applications -> Add/Remove Appications. Search for "VLC Media Player" and download the program with the orange cone icon. If you don't see an orange cone, the icon might be a cardboard box with all kinds of stuff sticking out of it. In that case, look at the discriptions. Install VLC and then use it to play your movie or DVD.
