I have a question about the apple iPod mini?

you can plug an ipod into any computer w/ itunes..

but unless your sister has songs on that same ipod, what you are describing does not make a lot of sense..

if you plug in the ipod, and have only the ipod open in itunes, and select all and delete, it should only delete the songs in the Ipod, not the ones in your sisters library..

How to delete songs on iPod

To delete songs from ipod nano-

on itunes go to edit, properties, click on the ipod section and then the music section and just click manually manage songs from play lists.

Yes you can delete those songs from another computer. Apple iTunes (if that's what you like) is free.

Apple Ipod is da shittiest skinny 2 purchase anyhow u in simple terms prefer a usb information cable & u prefer that crap itunes. if u.s. it on the different workstation to load some songs ur earlier dats wil b erased. this way of crap $hit. fortuitously u dint purchase a ipod video its da crapest $hit i hav considered even being a techi i wanted a million wk 2 load some video clips on it. even then im not sucessful to place the music video clips in music video play record . resourceful stuff rocks. it straightforward to apply.

Umm...do it on a different Itunes library that isn't anyones.