PARQUET-2369: Clarify GZIP members (#218)
diff --git a/Compression.md b/Compression.md
index 43abe8c..cfd4a3a 100644
--- a/Compression.md
+++ b/Compression.md
@@ -58,6 +58,10 @@
If any ambiguity arises when implementing this format, the implementation
provided by the [zlib compression library](https://zlib.net/) is authoritative.
+Readers should support reading pages containing multiple GZIP members, however,
+as this has historically not been supported by all implementations, it is recommended
+that writers refrain from creating such pages by default for better interoperability.
+
### LZO
A codec based on or interoperable with the
