When dBpoweramp fails to find meta-data, is there any simple way to import from a specified Discogs entry? For example I have the following CD:


which dBpoweramp fails to find metadata for (although iTunes can).

More fundamentally, is there a good explainer on how meta-data lookup works? Perhaps some linkage information is missing on the Discogs entry that is causing the failure?

Thanks in advance for any pointers.