The Yamaha Rescue disk will partition your hard drive, load the original version of software and the original Gracenote CDDB. You can then upgrade the software to get to where you are today. The CDDB will be a bit dated and not have all the music information, but you can connect the server to the web so the server can access the latest information as needed per Cd (it does not update the CDDB). The problem is that whoever is going to do this for you will want the entire server to ensure the system will work when complete. Thus, you visit Yamaha locally, or you risk shipping your server and pay the shipping costs.
The backup makes a mirror copy, so if it worked when it left your hands, it'll work when it comes back. All I require is your old drive and your working drive - the Yamaha software does the rest. Shipping is inexpensive as the drives are light. In the end, the backup is faster, more robust and easier for the end user.
PM me if you are interested.