Anyone have an idea?

upgrade to libdvdcss 1.2.9. Copy v 1.2.8's ebuild into overlay, rename it to 1.2.9 and emerge that. That's the only thing that worked for me...

I've run into this problem just now and found out that the problem is that the DVD drive might not have a region setting. I just bought a new laptop and never booted into windows. I guess that's the cause for me that I get this error.

The solution is equally simple. Use regionset to set the region on the DVD drive (apt-get install regionset dor debian/).

I have the same problem with my FarScape DVD's. Granted their are odly encoded, some having only titles, 72 at that. Some files do play just fine in both oogle, vlc, mplayer etc.

however since the last version of libdvdread is from even before this thread, and it really is libdvdread's fault (errors cracking CSS encryption) this is where to look for problems.

Since I haven't solved this one myselfsome (on 2 systems with 2 dvd players/burners) and no go.

Just giving this thread a bump since it's now 2007 and still got the problem

I also have the same problem but what is odd is that it pertains to .iso files. Some work fine other do not with the same error "Invalid IFO for Title **."

I'm getting the exact same errors but with only one drive. I have a new LG lightscribe drive refusing to play dvds that an older LG happily plays. I just ran regionset, it didn't help. Very odd. Some keys get found, but some don't:

libdvdread: Get key for /VIDEO_TS/VIDEO_TS.VOB at 0x00000132
libdvdread: Elapsed time 2
libdvdread: Get key for /VIDEO_TS/VTS_01_0.VOB at 0x00008fd6
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_01_0.VOB (0x00008fd6)
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_01_1.VOB at 0x00008fdb
libdvdread: Error cracking CSS key for /VIDEO_TS/VTS_01_1.VOB (0x00008fdb)!!
libdvdread: Elapsed time 0
libdvdread: Get key for /VIDEO_TS/VTS_02_0.VOB at 0x00009036
libdvdread: Elapsed time 0

With libdvdcss 1.2.9.

edit: Huh. I read some other forums and someone had solved this problem by changing the video driver used to xshm. I have *no* idea why this works, but it does for me as well.

edit2: With that driver the performance was terrible, so in disgust I changed it back. And now it works with the same configuration I previously had, or so it would seem. Confusion but success.

Check for a firmware upgrade for the newer drive. When I got my lg I had a lot of problems with it until I found the upgrade. Not a problem since. LG's website leaves a lot to be desired. I just did a google search on the model and firmware.

You upgraded the firmware with GNU/Linux? How? I only found win32 installers.

Usually they have a dos version. I went and got a cd bootable dos image (www.freedos.org). Then booted to the cd and installed the firmware update. I do my bios updates the same way.