A company called Analogue Drums has released a number of drum sample packs. They take a unique approach in that they record vintage drum kits on analog tape using vintage recording equipment and techniques, and then convert it to digital.
I've listened to their demos and the results are
for realism and sound quality.
Best of all, one of their kits can be downloaded for free on this page: Analogue Drums Big Mono. Their other kits are cheap too (20-25 USD).
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