Added some new comments and files
diff --git a/Demo/sgi/video/README b/Demo/sgi/video/README
index 628ccbf..39f63b5 100644
--- a/Demo/sgi/video/README
+++ b/Demo/sgi/video/README
@@ -1,7 +1,22 @@
-This directory contains Python and C code we wrote while we had a
-framegrabber board on loan from SGI.
+This directory contains Python and C code for video stuff.
- --Guido and Jack
+History:
+
+We started this in October 1991, when we had a large framegrabber
+board on loan from SGI for a few weeks.
+
+Later, when we started processing the recorded film fragments, the
+"CMIF video format" was revised several times, and we finally created
+an object-oriented interface for reading and writing various
+incarnations of these files, called VFile.
+
+When we finally got our own Indigo entry-level video board (in June
+1992) and a version of the Irix video library that supported capturing
+PAL format (August 1992) Sjoerd added an interface to the video
+library to Python (sv) and Guido wrote makemovie.py (based upon a
+still frame grabber by Sjoerd) to record a movie using it.
+
+ --Guido, Jack and Sjoerd
cam.py network real-time tv broadcast; see tv.py
@@ -24,6 +39,9 @@
colorsys.py color conversions, used by video
+makemovie.py record video movies using the Indigo video library and
+ board
+
statit.py various statistics operations on movie files
syncaudio.py record audio synchronized with camcorder -a
@@ -49,10 +67,14 @@
soundfile default is none (no sound)
skipbytes byte offset in soundfile where sound starts
+Vplay.py same but using VFile.py
+
vinfo.py print summary of movie file(s)
usage: vinfo [-d] moviefile ...
-d print delta times (default: print abs times)
+Vinfo.py same but using VFile.py
+
vpregs.py definition of VP registers
vtime.py virtual time module imported by syncaudio.py and camcorder.py