CD / DVD reading problem

[SharkMachine]

After updating to 2.6.24-14 kernel, I've had the following problem (not sure if it came earlier, and I can't boot the system with the previous kernel to find out :/)

When I insert a CD or DVD to my DVD drive, I normally get the popup asking what I want to do (open it etc.). Then I open it in Konqueror, and I can see all the files normally. But when I try to open any of the files, I get an error saying "unable to read file" etc.

After trying things for a while, I was able to read contents of a CD by manually mounting it. But couldn't do the same with DVDs. (but it's still quite inconvenient to manually mount it, since there was no need for that earlier)

And also suddenly I don't have /dev/hdc in my system and it's renamed /dev/scd0 , and it doesn't work with audio CDs nor video DVDs. (it works when mounting a CD though)

So, does anyone know how to fix this? I've been trying to search for an answer for a while,

[Rog131]

Re: CD / DVD reading problem

Maybe: Multimedia Problem: Maybe you don't have enough rights...(e.g: no disc in drive)

[SharkMachine]

Re: CD / DVD reading problem

Well, now xine just freezes when I try to play a dvd. And with VLC I still get the following

libdvdnav: Using dvdnav version 0.1.10 from http://dvd.sf.net
libdvdread: Using libdvdcss version 1.2.9 for DVD access
libdvdnav: DVD Title: DVDVolume
libdvdnav: DVD Serial Number: c50d50ce
libdvdnav: DVD Title (Alternative): DVDVolume
libdvdnav: Unable to find map file '/home/sharkma/.dvdnav/DVDVolume.map'
libdvdnavVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.IFO failed
libdvdnavVDOpenFileUDF:UDFFindFile /VIDEO_TS/VIDEO_TS.BUP failed
libdvdread: Can't open file VIDEO_TS.IFO.
libdvdnav: vm: faild to read VIDEO_TS.IFO
[00000293] dvdread demuxer error: DVDRead cannot open source: /dev/hdc
[00000296] vcd access error: no movie tracks found
ioctl(): Input/output error
[00000296] vcdx access error: error reading Info sector (150)
[00000296] access_file access error: file /dev/hdc is empty, aborting
[00000303] main private error: cannot pre fill buffer
[00000306] cdda access error: could not read block 0 from disc
[00000306] cdda access error: cannot read sector 0
[00000306] cdda access error: could not read block 1 from disc
[00000306] cdda access error: cannot read sector 1
[00000306] cdda access error: could not read block 2 from disc
[00000306] cdda access error: cannot read sector 2

And when I insert a normal DVD, I get the following error when opening it in new window:

mount: block device /dev/scd0 is write-protected, mounting read only
mount: wrong fs type, bad option, bad superblock on /dev/scd0, missing codepage or helper program, or other error
In some cases useful info is found in syslog -try dmesg | tail or so

EDIT: When trying to mount it manually with sudo mount -t udf /dev/scd0 /media/cdrom0, I get the same error.

And the output from dmesg | tail is

[40204.907709] sr 1:0:0:0: [sr0] Add. Sense: Logical unit communication CRC error (Ultra-DMA/32)
[40204.907713] end_request: I/O error, dev sr0, sector 76
[40204.910123] ISOFS: unable to read i-node block
[40204.910128] ISOFS: changing to secondary root
[40204.913644] sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[40204.913649] sr 1:0:0:0: [sr0] Sense Key : Hardware Error [current]
[40204.913652] sr 1:0:0:0: [sr0] Add. Sense: Logical unit communication CRC error (Ultra-DMA/32)
[40204.913656] end_request: I/O error, dev sr0, sector 88
[40204.916195] ISOFS: unable to read i-node block
[40204.916202] isofs_fill_super: root inode is not a directory. Corrupted media?

And the output from ls -l /dev/dvd*

lrwxrwxrwx 1 root root 9 2008-04-10 06:59 /dev/dvd -> /dev/dvd1
lrwxrwxrwx 1 root root 4 2008-04-09 19:54 /dev/dvd1 -> scd0
lrwxrwxrwx 1 root root 4 2008-04-09 19:54 /dev/dvdrw1 -> scd0

EDIT: And now data CDs work normally, but I'm unable to listen to audio CDs :/

[Rog131]

Re: CD / DVD reading problem

I think that the new driver is not working with your hardware :

[40204.907709] sr 1:0:0:0: [sr0] Add. Sense: Logical unit communication CRC error (Ultra-DMA/32)

Here:

dmesg | grep sr

tells:

[ 29.197994] Driver 'sr' needs updating - please use bus_type methods
[ 29.216515] sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray
[ 29.216581] sr 3:0:0:0: Attached scsi CD-ROM sr0
[ 29.224914] sr1: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray
[ 29.224978] sr 3:0:1:0: Attached scsi CD-ROM sr1

There are bug reports:

CDROM drive no longer working, unable to mount.
https://bugs.launchpad.net/ubuntu/+s....20/+bug/94119

[SharkMachine]

Re: CD / DVD reading problem

Well, I have to hope they get it fixed or switch back to debian :/

Or possibly buy a DVD burner that works properly in linux. Any suggestions? (I've had problems in not getting DMA working with my DVD drive for ages anyway)

[Guest]

Re: CD / DVD reading problem

This issue is happening with Debian also. I've spent all day searching for a fix, but I don't find one. What is happening is that mplayer, totem, vlc and and the whole linux system aren't recognizing a USA DVD as valid - they show no disk.

An old USA disk - perhaps 8 years old - plays - it is a commercial movie.

No one has gotten the fix yet - or I haven't found it - and I don't know where the problem is - unless it is libdvdcss and where do you go to report a bug with that?

All the players from vlc to ogle don't work.

DR