Thank you for all the feedback.
I think the problem was with the CD's I was trying to rip. I had already ripped ~150 CD's no problem. Then had 3 or 4 discs in a row that did not get the information from YADB. Have tried these same discs at other times and again did not work with YADB..maybe not in the data base? These discs did work with itunes. These are discs I bought from record store, ie they are not copies or bootleg. Here are the discs:
Blues Traveler, Save His Soul. A&M Records 1993.
Cure, Wish. Elektra 1992.
Best of the Doobies, WB.
Billy Joel, Greatest Hits Volume 1 and 2, Columbia.
Are these not in the YADB database?
Anyway, overall Mediacenter 9 is a great program and I am happy with my purchase. I recently got a Squeezebox from Slim devices and used Mediacenter to rip and convert to mp3 to play on the squeezebox which is absolutely awesome. Do you think there will be a plugin in the future to directly interact mediacenter with the squeezebox? I'd purchase it if available.
Thank you