hey i got a black 30g video ipod and when i connect it to my pc it says unknow divice dont no what happen and i go to itunes put songs on my ipod and when i go on the ipod the songs are not there?? please help me thanks

Try uninstalling and reinstalling the pod.
If not, get back to me again. I have the same iPod as you and mine is working really well
N

how do you reinstall the ipod it mate

Assuming ur on windows:
Start menu > Control Panel > add or remove programs >> itunes >> remove.
Once completed DO NOT RESTART COMP.
Then insert disc that came with the pod and go through the set-up, then restart comp, and try plugging the pod in then.
N

ok thanks will try brb when i do it

Another suggestion would be to try the help files in iTunes and/or the support section of apple.com