The DTS 96/24 is the newer format. The receiver will still decode the older format as well. The normal DTS is encoded at 48kHz at 16 bits where the DTS 96/24 is done at 96kHz at 24 bits. The older version will also be able to decode the newer format as it just ignores the extension bits. Of course you won't benefit from the increased resolution, which will provide cleaner sound.