Syncing iPod to Mac without erasing new music

I have two computers with iTunes. All the music from Computer 1 has been downloaded to my iPod. I would like to download all that music onto Computer 2. However, Computer 2 has newer music on it that is not on my iPod/Computer 1. I can't figure out how to get the music from my iPod onto Computer 2 without erasing the new music. Suggestions? Thanks.

PS: Both of computers are on Mac OS.

 

Downloading music files from the iPod will have no effect on what is present @ the Computer 2, but you'd have to change the sync to #2.

However, the easiest way to get the music the same between Computer 1 & 2 (if they are both Mac) is to set up sharing for the music folder on #1 via System Preferences, then go into Computer #2 and access #1 via networking in the Finder window for the main HDD, and then simply drag the music over to #2 so #2 has the full library from both.

 

The music on computer 2 won't be erased but the music on the iPod will be erased. If this music was purchased through iTunes and all through the same Apple ID then they can be downloaded onto the computer through the iTunes store. For non-protected music on computer 1 you can just make a back up copy cd then load that cd onto computer 2. For any protected music you would need to make certain it was purchased through the same Apple ID and that computer 2 is an authorized computer under that Apple ID.
Know more about how to transfer or backup music from iPod to Mac, which included the detailed tutorials of how to transfer or backup your music from iPod to Mac.
Best wishes.

 

If all you want to do is transfer music from your ipod to a newer computer, download senuti and follow the instructions.