When I insert a CD with jpeg files cannot find it or open it

What happens when you put the disk in another computer, if one is available?

What is the output of:

sudo fdisk -l; lsb_release -a; uname -a

Thanks

How is the disk formatted?

Anthony, no other computer at the moment.
Arochester: What do you mean?

Actionparsnip: Here it is:

ctrc@ctrc-Vostro-200:~/Desktop$ sudo fdisk -l; lsb_release -a; uname -a
[sudo] password for ctrc:

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000c0863

   Device Boot Start End Blocks Id System
/dev/sda1 * 2048 973105151 486551552 83 Linux
/dev/sda2 973107198 976771071 1831937 5 Extended
/dev/sda5 973107200 976771071 1831936 82 Linux swap / Solaris
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.4 LTS
Release: 14.04
Codename: trusty
Linux ctrc-Vostro-200 3.19.0-65-generic #73~14.04.1-Ubuntu SMP Wed Jun 29 21:07:17 UTC 2016 i686 i686 i686 GNU/Linux
ctrc@ctrc-Vostro-200:~/Desktop$

Arochester: It says CD-R
 I originally put these files on the CD to transfer them to a new computer. They are photo files.

What color is the CD case?

Of course I'm just joking. I would try lsblk. Could you post the results from that?
When you burned the disk did you check that it was done successfully? Meaning: are you sure the data is actually on the disk?

If you have the CD inserted into the computer, you should see an additional icon on the left hand side of the file explorer window.
Similar to this http://bernaerts.dyndns.org/images/technoblog/oneplus/oneplustwo-nautilus-cdrom.jpg

Do you have such CD icon?

Anthony: I played the CD on another computer and was able to see my graphic files.

Manfred: I dont see ANY icon on the desktop and dont know where to find it. I looked in Removable Storage and the boxes are checked. What do you mean File Explorer? I have looked in every part of the File System and nothing shows up.

Just to rule out a defective CD/DVD drive or missing driver software:
Can you insert some other CD or DVD in your drive, and does it work with that other one?

What is the output of the command
dmesg | grep -i cd

Dustbindiva
On my 14.04, you would click on Files, at top left, (Unity Launcher) of Desktop. See site below.

http://www.howtogeek.com/188096/how-to-resize-the-unity-launcher-icons-in-ubuntu-14.04/

That will bring up the image that Manfred referred to in #7.

I dont have the Unity launcher on the left side of my desktop. Maybe I dont have the Unity desktop. It is Xubuntu. There is a File System icon on the desktop but I have looked in there and found nothing under CDROM.

Diva
I checked my Xubuntu, but it is 12.04. To find if CD/DVD is showing, go to the top left corner icon, then Settings, then to Disk Utillity. If there is not Disk Utillity showing, then you must install it from Software Center. Again this is 12.04, there may be differences.

Please give output of the terminal command Manfred asked for. If you haven't used the terminal, tell us, we will help.

Also the terminal command " lsblk" from #6. Please disreguard my last sentence, in #12.

MICHAEL: I dont have the Unity launcher on my desktop. I have 14.04 Trusty and there is no such thing as Disk Utility. I will go to the software center as recommended.

Here is the output from the terminal for lsblk:

ctrc@ctrc-Vostro-200:~/Desktop$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
├─sda1 8:1 0 464G 0 part /
├─sda2 8:2 0 1K 0 part
└─sda5 8:5 0 1.8G 0 part [SWAP]
sr0 11:0 1 1024M 0 rom
ctrc@ctrc-Vostro-200:~/Desktop$
ctrc@ctrc-Vostro-200:~/Desktop$

MANFRED AND MICHAEL. Here is the output you asked for.

dmesg | grep -i cd

ctrc@ctrc-Vostro-200:~/Desktop$ dmesg | grep -i cd
[ 1.053482] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.068107] usb usb1: Manufacturer: Linux 3.19.0-65-generic ehci_hcd
[ 1.084077] usb usb2: Manufacturer: Linux 3.19.0-65-generic ehci_hcd
[ 1.084524] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 1.084568] uhci_hcd: USB Universal Host Controller Interface driver
[ 1.084698] uhci_hcd 0000:00:1a.0: UHCI Host Controller
[ 1.084705] uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 3
[ 1.084713] uhci_hcd 0000:00:1a.0: detected 2 ports
[ 1.084745] uhci_hcd 0000:00:1a.0: irq 16, io base 0x0000fd00
[ 1.084816] usb usb3: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.085241] uhci_hcd 0000:00:1a.1: UHCI Host Controller
[ 1.085248] uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 4
[ 1.085255] uhci_hcd 0000:00:1a.1: detected 2 ports
[ 1.085285] uhci_hcd 0000:00:1a.1: irq 21, io base 0x0000fc00
[ 1.085352] usb usb4: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.085766] uhci_hcd 0000:00:1a.2: UHCI Host Controller
[ 1.085776] uhci_hcd 0000:00:1a.2: new USB bus registered, assigned bus number 5
[ 1.085783] uhci_hcd 0000:00:1a.2: detected 2 ports
[ 1.085802] uhci_hcd 0000:00:1a.2: irq 19, io base 0x0000fb00
[ 1.085869] usb usb5: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.086283] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[ 1.086291] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 6
[ 1.086298] uhci_hcd 0000:00:1d.0: detected 2 ports
[ 1.086318] uhci_hcd 0000:00:1d.0: irq 23, io base 0x0000fa00
[ 1.086385] usb usb6: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.086795] uhci_hcd 0000:00:1d.1: UHCI Host Controller
[ 1.086802] uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 7
[ 1.086809] uhci_hcd 0000:00:1d.1: detected 2 ports
[ 1.086828] uhci_hcd 0000:00:1d.1: irq 19, io base 0x0000f900
[ 1.086896] usb usb7: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.087311] uhci_hcd 0000:00:1d.2: UHCI Host Controller
[ 1.087321] uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 8
[ 1.087328] uhci_hcd 0000:00:1d.2: detected 2 ports
[ 1.087348] uhci_hcd 0000:00:1d.2: irq 18, io base 0x0000f800
[ 1.087415] usb usb8: Manufacturer: Linux 3.19.0-65-generic uhci_hcd
[ 1.544052] usb 6-1: new low-speed USB device number 2 using uhci_hcd
[ 1.844050] usb 7-2: new low-speed USB device number 2 using uhci_hcd
[ 1.891271] scsi 1:0:0:0: CD-ROM PLDS DVD+-RW DH-16A6S YD11 PQ: 0 ANSI: 5
[ 1.906339] sr 1:0:0:0: [sr0] scsi3-mmc drive: 48x/12x writer dvd-ram cd/rw xa/form2 cdda tray
[ 1.906344] cdrom: Uniform CD-ROM driver Revision: 3.20
[ 1.906576] sr 1:0:0:0: Attached scsi CD-ROM sr0
[ 11.902065] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
ctrc@ctrc-Vostro-200:~/Desktop$

1. The dmesg output shows that the DVD writer device is found. (timecode [1.891271] till [1.906576]).

2. Have you already tried a different CD medium?

3. What is the output of the commands

whoami
groups
ls -l /dev/cd*

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