I use Lamedrop 3.97beta to encode the WAVE files to MP3. Unfortunately, in the comments field, it's listed as "Encoded with Lamedrop 3.97beta" with each and every MP3. It automatically does this globally by default after I convert the filename to a tag.
The "< keep >" indicator is gone due to this.
Since I can't prevent Lamedrop from doing this (and it's a great little converter), I was wondering how I can globally change it AFTER I've converted all the other fields from filename to tag?
Or is there a way to default just this one field (comments field) before I convert the rest of the filename to a tag?
Well, Florian explained it already - and the FAQs as well.
After running the Filename - Tag conversion, select all files, choose "< keep >" for Title, Artist, Album, etc. and for Comment, type in "MCA 17794 LP". After that, save the tags clicking on the icon from the toolbar.