I didn't know about mislabeled licensed discs. My unlicensed discs don't have the logos. Identifying by ringcodes is good, but most members don't know how to do that, which brings up another guide issue that I'll explain below.
It'd be nice if we had a ringcode guide on the site. There are a lot of new and old members that don't know they are supposed to provide the codes with their dumps. Having a guide would eliminate the confusion, since the current guides only cover dumping and they don't even mention ringcodes. There have been some helpful posts by members in the dumps forum recently. Maybe their posts could be the basis for a guide on ringcodes.