iPodRip Problem?

I have been trying to use IpodRip to get my songs off my Ipod to my new Macbook, and there seems to be a problem. It gets about halfway and always gives me an error report that it has had an error and ask me to reopen or close IpodRip. It seems to always happen on some songs that are in wav format. Is there another program that I can use and keep my current playlist and song counts?