Ok, a few things you might want to check:
- Try ripping other CD's, it's possible that your disc might be damaged in some way that prevents Express Rip from accessing or ripping it or the specific disc in question may have some kind of copy protection software that prevents Express Rip from ripping it.
- If you have firewall software, it may be blocking Express Rip access to the internet to obtain track information through Port 8880, try allowing Express Rip access or temporarily deactivating your firewall when inserting a disc to rip.
After checking these, if you are still experiencing problems try uninstalling and then reinstalling Express Rip.