I'm using the trial version on both machines. I've had endless trouble ripping on my Windows machine. I thought that it might be the external disc player and now have two that don't work . However, the internal optical drive on the Mac works fine and when I hook up the external optical drives to the Mac they also work so it seems that it's something to do with Windows or my computer but I have no idea what. In case it matters, the computer is an HP Spector X360 laptop that's about a year old and is running most current version of Windows 10. I've ripped quite a few discs on it but it's always been really fussy and when I went to get some discs this weekend it went from fussy to "I won't do this anymore". Any ideas or help would be appreciated.

The error message is:
Unable to read CD, check CD disc (frame LBA 231843 ripping 26 frames track end LBA 258475) [clRipperBurst::Rip]

Thanks!