// BZGF constants
const int BGZF_BLOCK_HEADER_LENGTH = 18;
const int BGZF_BLOCK_FOOTER_LENGTH = 8;
-const int BGZF_MAX_BLOCK_SIZE = 262144;
-const int BGZF_DEFAULT_BLOCK_SIZE = 262144;
+const int BGZF_MAX_BLOCK_SIZE = 65536;
+const int BGZF_DEFAULT_BLOCK_SIZE = 65536;
} // namespace Constants
} // namespace BamTools