When I try to playback eg. a dvd nothing happens (exept for the button flashing). I have installed the libdvdcss package, but the disc isn't encrypted anyway. The DVD-drive is installed as secondary master. Cd's playback very well. What could be wrong? Could it have something to do with symb links?

Go into the setup and see what your command is to play a dvd. Now type that command into a terminal and observe the feedback. That could point you in the right direction.

or take a look at this post: http://mysettopbox.tv/phpBB2/viewtopic.php?t=1676&highlight=dvd

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Tyan Trinity 1854S - VIA Apollo Pro 133
P3-1000, 768mb PC-133, GF2 MX400 64mb
Avermedia M179, ATI TV Wonder w/remote, Maxtor 160 gig, DVD burner.R5E50.
Second FE - Thinkpad T22, 900, 384mb. Ubuntu Dapper, Mythtv FE 0.20

Do I need to mount anything when I want to play a dvd or vcd??
Myth is configured to search for discs in /dev/cdrom and /dev/dvd (theese paths don't seem to exist) is that right when my dvd-drive is secondary master?
If I type mplayer vcd:// -fs -zoom i get this output:

MPlayer 0.92-3.3.2 (C) 2000-2003 MPlayer Team
CPU: Intel Celeron A Mendocino/Pentium II Dixon (Family: 6, Stepping: 5)
Detected cache-line size is 32 bytes
CPUflags: MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Reading config file /usr/local/etc/mplayer/mplayer.conf: No such file or directory
Reading config file /root/.mplayer/config
Illegal instruction

ok what kind of cpu do you have? usually the illegal instruction happens when you have the i686 compiled version of mplayer running on a cpu that does not have sse.

about not having /dev/cdrom and /dev/dvd that will pose a problem. no you don't have to mount anything to play dvd/cd, but the install is supposed to detect your dvd/cd drive and create appropriate simlinks to /dev/cdrom and /dev/dvd

Dohh.. I have an Intel Celeron 500 mhz. So I guess that is the problem. How do I change to i586? I have the 15.1 debs installed.

http://mysettopbox.tv/doc.html Read the "Added software packages"...

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cesman

When the source is open, the possibilities are endless!

Thanks a lot cesman. I untared, configured, made and installed mplayer. Now after also editing the vcd command by throwing away -fs and -vo xv (or what it was) I'm able to play vcd's. BTW what does theese paremeters that I now don't use?
DVD's still won't play and I have installed the dvdcss. Heres my output (or part of it):
mplayer dvd://
Playing dvd://.
libdvdread: Using libdvdcss version 1.2.5 for DVD access
libdvdread: Could not open /dev/dvd with libdvdcss.
libdvdread: Can't open /dev/dvd for reading
Couldn't open DVD device: /dev/dvd


Exiting... (End of file)

"man mplayer" will bring up the man page for mplayer. You can find out more info about mplayer than you ever wanted to know.

What does ls -l /dev/dvd come back with?

root@mythtv:~ # ls -l /dev/dvd
lrwxrwxrwx 1 root root 8 Jun 15 13:48 /dev/dvd -> /dev/hdd

Which means your dvd drive is the secondary slave. Is it? If not ln -sf /dev/hdX(where X is dvd drive) /dev/dvd.

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cesman

When the source is open, the possibilities are endless!

Hmm.. It isn't so I changed the link to /dev/hdc (secondary master, right?). But I still get the same message from mplayer (when running it in an X-term). If I run mplayer through ssh I get this message:

Playing dvd://.
libdvdread: Using libdvdcss version 1.2.5 for DVD access
Reading disc structure, please wait...
libdvdread: Can't open file VIDEO_TS.IFO.
Can't open VMG info!

This is normally done automatically for you... Did you let the script finish(script that runs after first reboot)?

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cesman

When the source is open, the possibilities are endless!

I think the reason that this link isn't set right is because that I tried to do something I read in another thread without knowing what I was doing.. But even after I've changed it back as you told me I still get the exact same error.