He could mean that the original recording used a higher frequency (44.1khz vs 96khz).
That said, 44.1khz puts the Nyquist frequency just above what most adults are capable of hearing. Unless you're young and have excellent hearing, it's unlikely that you'll perceive much difference for anything above 44.1khz.
That said, 44.1khz puts the Nyquist frequency just above what most adults are capable of hearing. Unless you're young and have excellent hearing, it's unlikely that you'll perceive much difference for anything above 44.1khz.