The answer to this question depends upon the IRIX system
  release you have:
  
        - If you are using IRIX 5.2 or earlier, you must obtain
  	  quicktime_dev, SGI's QuickTime development option, or else
  	  find or purchase a tool which supports QuickTime output.
 
  	  SGI does not provide a method to create QuickTime movie
  	  files in the 5.2 release of the Movie Tools.  If you
  	  obtain the Digital Media Development Option, together
  	  with the QuickTime Development option, you can obtain a
  	  tool which will create QuickTime files on an SGI system.
  
  	  See elsewhere in this FAQ for more information on both
  	  the Digital Media Development Option and the QuickTime
  	  Developer's Option.
  	  
  	- If you are using IRIX 5.3 or later, you can use the
          Movie Maker or Movie Convert applications to write a
          QuickTime file.
          
        - If you use IRIX 5.3 with any of the following:
        	-  WebFORCE software product,
          	-  Desktop Special Edition 1.1,
          	-  the Digital Media 5.5 Tools
          	
          or if you use IRIX 6.2 or later, you can also use the 
	  Movie Master/mediaconvert, dmconvert, and makemovie 
	  utilities to create the QuickTime file.  You can also 
	  record a QuickTime movie using the Capture Tool.  See 
	  the first question in this FAQ for information on obtaining
	  the Digital Media 5.5 tools, or IRIX 6.2.

	- If you use IRIX 6.2, note that the QuickTime Development
	  option has been incorporated into the Digital Media
	  Development option, and is no longer needed; additionally,
	  it supports the features found in Digital Media Tools
	  5.5. 
  	  
  There is a commercially available tool called Image Independence
  which will allow creation of both SGI and QuickTime movies
  under IRIX 5.2 and later.  It is a batch image converter with A
  GUI and command-line versions.  It can also convert movies from
  one type to another, or split movies into separate frames.  It
  comes with over 20 image formats, is fast and flexible.  It lists
  for $495, and it can be purchased from Elastic Reality, Inc.
  http://www.elasticreality.com/.