After ripping about 150 CDs I noticed the Rate-Bitrate-Mode was set to Mono. !@#%@! I remember setting it to stereo some time ago and don’t know when it had changed. I thought I could look at the tags or listings to determine what CDs needed to be reripped but all the mode entries are blank. I changed it back to stereo, ripped another cd and the mode is blank for this cd too. How can I determine the mode for all my ripped CDs?