Providing a hard drive, and i'm refering to a high end unit as i'm not familiar with PCs, can transfer information bit for bit with no loss, then theoretically it could be better than a dedicated transport.
Teac were, and still are famous for making the VRDS clamping system, which was designed to reduce vibration through the spinning disc. The hard drive units i heard and sold were as good as my dedicated unit. The plus side with the hard drive was the cataloguing system and instance access. I would never spend what the amount i did on a Audiophile system again.
But likewise you can spent 10k easily on a high end hard drive unit.