.rar (a compressed archive containing the music tracks).
{RAPO_CDRip} indicates the file was ripped directly from a physical CD by a specific release group or person (likely "RAPO").
FLAC (Free Lossless Audio Codec), which preserves the full original audio data from the CD without any quality loss.
Based on the official soundtrack release (often listed under 1997 or 1999), this archive typically contains: