Technical problem W/ DVD Fedora 11

[squirtmph]

1ST QUESTION
I was using my optical drive yesterday evening, and I wanted to watch a DVD today and guess what stooped working. (i have try to use the same DVD I play yesterday)
I guess I did something wronged last night, I was up doing allot upgrades in YUM like:
-Getting stared
-Running YUM Noninteractively
-Maintaining YUM
-using YUM to manage package inventory
I did some of this from a book and web page below
http://www.cyberciti.biz/faq/rhel-ce...command-howto/

2ND QUESTION
How can I work with HDPARM my O.S doesn't find this commands i will love to perform this task:
*General format of the command
*Command run a hard disk test
so ON

but why terminal doest fiend this command E.G. ( # hdparm -tT device, hdparm command device, hdparm -tT /dev/hda

Than you foe ever-thing a head for all your support in these matter.
Art M

[squirtmph]

MozPlugger 1.12.1 handles QuickTime and Windows Media Player Plugin

File name: nswrapper_32_32.mozplugger.so
MozPlugger version 1.12.1, written by Fredrik Hübinette, Louis Bavoil and Peter Leese.
For documentation on how to configure mozplugger, check the man page. (type man mozplugger)
Configuration file: Not found!
Helper binary: Not found!
Controller binary: Not found!
Link launcher binary: Not found!

If it's not can you still help me to resolve this tremble shoot, please?

Thank you

[glennzo]

I don't see a question in part 1. You can install hdparm using yum.
yum install hdparm

[squirtmph]

MozPlugger 1.12.1 handles QuickTime and Windows Media Player Plugin

File name: nswrapper_32_32.mozplugger.so
MozPlugger version 1.12.1, written by Fredrik Hübinette, Louis Bavoil and Peter Leese.
For documentation on how to configure mozplugger, check the man page. (type man mozplugger)
Configuration file: Not found!
Helper binary: Not found!
Controller binary: Not found!
Link launcher binary: Not found!

If it's not can you still help me to resolve this tremble shoot, please?

Thank you

I can't play any DVD from the DVD player, and I would like to know why?
and what can't I do to repair whatever I did wrong, please
I insert the DVD, and I don't see the DVD will read the movie, any support I will love to hear from you

Thank you

[squirtmph]

I am looking some technical support here, please can some body tell me what to do. here.
Thank you.
Art M
:confused:

[squirtmph]

I don't see a question in part 1. You can install hdparm using yum.
yum install hdparm

[oem@FreekBox ~]$ yum install hdparm
Loaded plugins: dellsysidplugin2, refresh-packagekit
You need to be root to perform this command.
[oem@FreekBox ~]$ su
Password:
[root@FreekBox oem]# yum install hdparm
Loaded plugins: dellsysidplugin2, refresh-packagekit
Setting up Install Process
Package hdparm-9.12-1.fc11.i586 already installed and latest version
Nothing to do
[root@FreekBox oem]# hdparm /dev/hda
/dev/hda: No such file or directory
[root@FreekBox oem]# hdparm -tT /dev/hda
/dev/hda: No such file or directory
[root@FreekBox oem]# hdparm tT /dev/hda
tT: No such file or directory
[root@FreekBox oem]# hdparm tT /dev/hda
tT: No such file or directory
[root@FreekBox oem]# hdparm -tT device
device: No such file or directory
[root@FreekBox oem]#

[glennzo]

Try this
hdparm -T /dev/sda