Ubuntu crashes when i insert a DVD-ROM

[ddaann1]

When i insert a DVD-ROM such as Ted, Skyfall e.t.c. Ubuntu completely freezes, and the only way i can do anything again is to hold down the power button until it shuts down. When i boot it up again i have to eject the disc before the login screen appears or else it crashes again.

Btw, i am a novice at this.

Optical Drive: Slimtype DVDRW SSW-8015S

Ubuntu 12.04 LTS

Memory: 1.5 GiB
Processor: Intel® Celeron(R) M CPU 440 @ 1.86GHz
OS type: 32-bit

Thanks,

ddaann1

[2F4U]

Did you install the restricted codecs? Did you look into the system log file? It may give a hint on what goes wrong.

[ddaann1]

I have the "ubuntu restricted extras" installed. How do i access the system log file? When i type "/var/log/messages" in to the terminal it says "permission denied"