diff --git a/client/filter.c b/client/filter.c
index e88defa..c187e05 100644
--- a/client/filter.c
+++ b/client/filter.c
@@ -1,5 +1,5 @@
 /*
- *  $Id: filter.c,v 1.13 2008/10/13 11:30:06 schmirl Exp $
+ *  $Id: filter.c,v 1.14 2009/02/13 13:02:39 schmirl Exp $
  */
 
 #include "client/filter.h"
@@ -227,6 +227,7 @@ void cStreamdevFilters::Action(void) {
 			u_short pid = (((u_short)block[1] & PID_MASK_HI) << 8) | block[2];
 			u_char tid = block[3];
 			bool Pusi = block[1] & 0x40;
+			// proprietary extension
 			int len = block[4];
 #if 0
 			if (block[1] == 0xff &&
diff --git a/server/livefilter.c b/server/livefilter.c
index 730fedc..67b0e37 100644
--- a/server/livefilter.c
+++ b/server/livefilter.c
@@ -1,5 +1,5 @@
 /*
- *  $Id: livefilter.c,v 1.6 2009/02/13 10:39:22 schmirl Exp $
+ *  $Id: livefilter.c,v 1.7 2009/02/13 13:02:40 schmirl Exp $
  */
 
 #include "server/livefilter.h"
@@ -26,6 +26,7 @@ void cStreamdevLiveFilter::Process(u_short Pid, u_char Tid, const u_char *Data,
 		buffer[1] = ((Pid >> 8) & 0x3f) | (pos==0 ? 0x40 : 0); /* bit 6: payload unit start indicator (PUSI) */
 		buffer[2] = Pid & 0xff;
 		buffer[3] = Tid;
+		// this makes it a proprietary stream
 		buffer[4] = (uchar)chunk;
 		memcpy(buffer + 5, Data + pos, chunk);
 		length -= chunk;