DVD seek fails

A couple of months back, I wrote to the list since I had trouble with  
reading some dvd's (see  
http://lists.berlios.de/pipermail/ogle-devel/2005-August/thread.html).

Somehow I got things to work, but I'm not sure what I did. A couple of  
weeks ago, things broke again and again I don't know what happened. New  
kernel, maybe...

The basic problem is that playing dvd's after block 2^21 does not work.
In other words, the first few tracks on a dvd work but the last ones  
don't work.

Back in August, I suspected some 64-bit error in the libraries to be  
the culprit, but now I have a different theory: I've noticed that my  
dvd drive, a Teac dvd writer, is picky about what sorts of commands it  
accepts. For instance, a standard cdrom eject command does not work,  
but a scsi eject does. I'm beginning to suspect that this is related to  
my dvd playing problems. I've posted logs of "DVDCSS_VERBOSE=2 strace  
mplayer dvd://3" (plays normally) and "DVDCSS_VERBOSE=2 strace mplayer  
dvd://5" (fails with a seek error) on my website.

The logs can be found at

http://nullinfinity.org/dvd_3_works  and  
http://nullinfinity.org/dvd_5_fails

Sorry for using mplayer, but right now my copy of ogle won't display  
video for some reason. :)

If anyone can take a look at the logs and tell me what's wrong and  
possibly suggest a workaround, I'd be very grateful. I think the most  
interesting part of the logs is this, when trying to play title 5:


write(2, "libdvdcss debug: key found in ca"..., 36libdvdcss debug: key  
found in cache
) = 36
close(4)                                = 0
lseek(3, 4977293312, SEEK_SET)          = -1 EINVAL (Invalid argument)
write(2, "libdvdcss error: seek error\n", 28libdvdcss error: seek error
) = 28


I'm beginning to think that my drive simply doesn't like lseek with a  
large argument. Maybe I should ask Jens Axboe about this...

Regards,

Johan