Document that :data is unsupported for playing sound on Windows.

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 00dedc0..04466f2 100644 (file)
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2180,6 +2180,9 @@ Files larger than 4GB cause overflow in the size (represented as a
 well, since the Windows port uses a Lisp emulation of `ls' that relies
 on `file-attributes'.
 
+Sound playing is not supported with the `:data DATA' key-value pair.
+You _must_ use the `:file FILE' method.
+
 ** Typing Alt-Shift has strange effects on MS-Windows.
 
 This combination of keys is a command to change keyboard layout.  If