f you registered a company as the OWNER of a copyright, but didn''t affix "LLC" to the name on the form, would that pose some potential issues later?

You can file a supplementary registration to "correct" or to "amplify" information in a basic registration. A "correction" is appropriate if information in a basic registration was incorrect at the time that basic registration was made. Examples: the basic registration identified an incorrect author of the work, or the work was registered as published when publication had not actually taken place. "Amplification" falls into three general categories: (1) Additional information that could have been given but was omitted at the time of basic registration (Example: a co-author was omitted); (2) Changes in certain facts that have occurred since the basicregistration (Example: change of title); and (3) Explanations that clarify information given in the basicregistration (Example: statement of authorship in the version being registered was not sufficiently explicit on theoriginal application). You should file Form CA and a copy of the front and back of the certificate of theregistration being amended.