You say your problem is "chroma flare"? Whether you're new to video work or not, surely your eyes are better than that. It's bad tape, played with a bad player, horrible vertical jitter and line timing errors with no line tbc, serious mistracking, , etc., etc., etc., all of it worsened by recording to a lossy codec. If you no longer have the tape and can't even get a decent VCR, I'm afraid you're stuck with garbage from too many previous mistakes.
