Step 1: Free download Tansee iPod Transfer and then install it. You can konw more about it by referring here.
Step 2: Connect iPod to your computer.
Step 3: Launch Tansee iPod Transfer and all the content of your iPod, including music and videos will display, screenshot as follows:

Step 4: Select the files to be transferred to your computer by click them. Ctrl key for multi-files select.
Step 5: Click "Copy" button to select output path and start to transfer songs and videos to your computer:

Tips: How to Transfer music and video from iPod to iTunes Music Library?
Step 1: Transfer your songs / videos to a folder on your computer by Tansee iPod Transfer, e.g. "D:/music" .
Step 2: Run iTunes, click "File", click "Add Files to Library..." or "Add Folder to Library..." , select the songs in folder D:/music.
Or simply run iTunes, Drag your files in "D:/music" to your iTunes music Library.