You can't.
That is imposible to do because it's be behinds your anti-memory background.
you plug your iPod into your computer and click on iPod and go to your iPod's folders and you will find all your videos and right click on them so you can delete them.
You can't get them back
You must drag it back onto the iPod via iTunes when your iPod is plugged into the computer.
mmm the same way you got them to the ipod
If it is an ipod you can just sync it with itunes.
you dont unless you resync it to the backup
you cant. their gone forever
If the song is deleted, then you can't put it on your iPod.
Deleted YouTube videos are deleted and cannot be viewed. The majority of videos that are deleted have violated YouTube's terms of service, so sites that illegally host such videos will not be linked to on WikiAnswers.
Yes your songs will be deleted but you can get them off the iPod using a program such as iDump or iPod2Computer Transfer Curtis White
Everything on it will be deleted, so back up everything on your computer.