def METHOD_NAME(scratch_dir):
    rar_path = os.path.join(scratch_dir, "hmdb51_org.rar")
    videos_dir = os.path.join(scratch_dir, "videos")
    if not os.path.exists(rar_path):
        logger.info("Downloading dataset to '%s'", rar_path)
        etaw.download_file(_VIDEOS_DOWNLOAD_LINK, path=rar_path)
    else:
        logger.info("File '%s' already exists", rar_path)
    logger.info("Unpacking videos...")
    etau.extract_rar(rar_path, outdir=videos_dir, delete_rar=False)
    with fou.ProgressBar() as pb:
        for class_rar_path in pb(etau.list_files(videos_dir, abs_paths=True)):
            etau.extract_rar(
                class_rar_path, outdir=videos_dir, delete_rar=False
            )
    return videos_dir