Using copyrighted material in home videos, even small clips, can be illegal without the creator's permission, as copyright laws protect artistic works regardless of ownership of physical copies. Fair use allows limited use for purposes like critique or review, but its application is murky and often depends on context. Many creators and companies strictly enforce their rights, leading to potential legal action against unauthorized use. Digital technology complicates the definition of "part of a song or video," making it challenging to navigate copyright issues. Ultimately, respecting copyright and seeking permission is crucial to avoid legal repercussions.