RMVB is a variant of the RM format that offers better compression for video and audio files. It is commonly used for storing and streaming high-quality video content at lower bitrates. RMVB files are often used for movies, TV shows, and video streaming applications.
FLAC is a free, open-source audio format known for its lossless compression and high-quality sound. It preserves all the original audio data without any loss of quality. FLAC is ideal for audiophiles who require high-quality audio files for listening, archiving, and editing, without taking up as much storage space as uncompressed formats.