diff --git a/stepmania/avcodec.dll b/stepmania/avcodec.dll
new file mode 100644
index 0000000000..041bebfc53
Binary files /dev/null and b/stepmania/avcodec.dll differ
diff --git a/stepmania/avformat.dll b/stepmania/avformat.dll
new file mode 100644
index 0000000000..6ca2f9ea54
Binary files /dev/null and b/stepmania/avformat.dll differ