***************************************************************
*  This firmware is for the following products:               *
*-------------------------------------------------------------*
*  7721AE4(-B)-HD                                             *
***************************************************************

version 4v4_34  (July 6, 2009)
---------------------------------------------------------------

- fix rare and random black lines on output video
- harmonized VistaLink and card-edge audio delay settings
- corrected Panasonic D5 deck compatability issue when passing upstream embedded groups
- corrected issue of intermittent (and false) video detection when video was not present

Version 3.0 build 3 - (May 10, 2006)
----------------------------------------
- new firmware upgrade path thru VLPro.
- new subboard (A7700-AES4-3) corrected the inter-AES skew 
  between audio channel pairs.

Version 2.5 build 10 - (May 03, 2006)
----------------------------------------
- correction to high jitter

Version 2.5 build 1 - (March 21, 2006)
----------------------------------------
- added 720p/50 video standard support
- improved video output during input relocking

Version 2.3 build 3 - (November 4, 2005)
----------------------------------------
- correction for channel status bit issue
- correction for channel phasing errors in AES2, AES3 and AES4
- Group lock feature is always enabled

Version 2.3 build 1 - (August 30, 2005)
---------------------------------------
- fixed inconsistent video delay through the module.  Video delay would vary 
  considerably from sucessive power ups or input video interruptions.

Version 2.1 build 3 - (February 14, 2005)
-----------------------------------------
- correction to audio delay range controlled through VistaLink

Version 2.0 build 3 - (May 26, 2004)
------------------------------------
- fix for occasional video errors on power-up

Version 2.0 build 2 - (March 10, 2004)
--------------------------------------
- changed product name from 7720AE4-HD to 7721AE4-HD

Version 2.0 build 1 - (February 19, 2004)
-----------------------------------------

********************************  ATTENTION  ************************************ 
**** 7700PB based 7720AE4-HD cards SHOULD NOT be upgraded with this firmware ****

- first release of for the 7700PH3 based modules

Version 1.02 build 1 - (August 13, 2003)
----------------------------------------
- fix for compatibility issue with the new Sony VTRs
- added VistaLink support
- added audio mute on AES input switch recovery

Version 1.1 build 1 - (March 10, 2003)
--------------------------------------
- First release