Does registering a song with IMRO protect it from copyright infringement?
Registering a song with IMRO does not provide full copyright protection, but it does offer supporting evidence in the event of a copyright dispute. Copyright protection automatically exists as soon as an original piece of music is fixed in material form (e.g., a recording or manuscript).
IMRO registration helps establish ownership and usage history, which can strengthen your case if infringement occurs.
For more on how copyright works, see the FAQ: “How do I copyright a piece of music?”