Sorting out older formats

[bostonbenny]

I use miminserver and JPlay very happily. My library, under construction since the '90s, contains older formats, like mp3 and AAC, which are currently grouped into JPlay's "CD" quality category. Is there some way to exclude lossy formats from the CD category. I don't want to delete them entirely. Thanks for any guidance and apologies if my question has already been answered.