diff --git a/price-trends/README.md b/price-trends/README.md
index c034dec..c1f856e 100644
--- a/price-trends/README.md
+++ b/price-trends/README.md
@@ -30,3 +30,7 @@ This folder publishes the computed monthly medians only, not the underlying per-
 ## Takeaway for buyers
 
 Because the two tiers track each other, there's no reliable price-per-TB win from picking enterprise over consumer among new drives. Buy on price-per-TB and CMR vs SMR, not on tier. The one genuine discount is the recertified/refurbished enterprise market, which sits well below new prices but comes with shorter reseller warranties and prior drive hours, so it isn't included here. And since these are supply-driven prices, they are unlikely to snap back to 2024 levels soon; plan around the current floor rather than waiting for a rollback.
+
+## Using this data
+
+The monthly medians here are computed aggregate statistics, free to use. A credit or link back to nasdisks.com is appreciated, not required. They are derived figures rather than a copyrightable dataset, so they are provided as-is and are not placed under the repository's CC BY 4.0 license (which covers the drive specs and CMR/SMR data).