I am a former Windows user who has moved over to OS X. In Windows there as a wonderful application called dBpoweramp http://www.dbpoweramp.com/cd-ripper.htm that checked CD rips by comparing them to external databases to ensure that the rip was bit-perfect. In OS X what are the equivalent applications (the only one I could find online is called XLD) and what are people's experiences with them. TIA, Joel PS. Apologies for posting this but with the search feature disabled there is simply too much to read.