How do I transfer songs from someone elses iPod onto my playlist without erasing the songs i have al

My sister gave me her iPod because she bought a new one. She has over 700 songs on it, how can I get it onto my computer without erasing the songs that I have already on my playlist and my own iPod?

Answers:

This is type off the top of the head and at 2am so please excuse any errors, but the process is right !

Things to do first... You can skip any part that is already done.

1:Enable Hidden File Viewing Option

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Open %26#39;My Computer%26#39; and select from the menus "Tools/folder options%26#39;

Select the View Tab

Locate the text Show hidden files and folders and click the cirlce.

Click the OK Button

2:Make a New Folder, on a disk with enough storage ( 30gig I think )

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Double click the drive icon in %26#39; My Computer %26#39;

Right click in an empty part of the screen

Slect NEW/FOLDER in the popup menus

Type in a name that you like

Double click on the New folder that you renamed.

3:Connect the Ipod

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Plug in the Ipod and let itunes find it.

It may prompt you about being synced with another PC but just say %26#39;NO%26#39;.

In the ipod option screen in iTunes check the Manual sync box and enable diskuse then APPLY.