Buz Drivers Version 1.2 Installation Instructions

4/28/98

Table of Contents:

    1. How to install the drivers
    2. Changes in this Version of the 1.2 driver


1. How to install the drivers

Step 1:
	UnZip the Buzupdate file:
		1.  Double click on the file "Buzupdate"
		2.  Select UnZip from the WinZip Self Extractor window
		3.  Write down the directory where the file is extracted
		4.  Select "OK" after the WinZip Self Extractor window appears
		5.  Close the WinZip Self Extractor window

		The Buzupdat.exe file will extract twelve files (some are system
		files and may not appear in Explorer);
 
		Buz.inf		Buzup.bat	Readme.txt (this file)
		Ctdmamem.dll	H22capt.dll	H33drv.dll
		I2xirq.vxd	Mgi16.dll	Mgi32.dll
		Simovl16.dll	Simovl32.dll	Vdmamemd.dll

Step 2:
	Click on the "Start" button. Select "Settings", "Control Panel".
	Double click on the "System" Icon and then select the "Device Manager"
	Tab. Expand the "Sound, video and game controllers" tree by clicking on the
	"+" sign to the left. Click the "Iomega Buz Multimedia Producer" item and 
	then click "Remove". Select the "OK" button to complete removal of the 
	device.

	<OR>

	Open "Device Manager" by holding down the Alt key and double clicking on
	"My Computer". Select the "Device Manager" tab and then double click on
	"Sound, video and game controllers" icon.  Single click on the
	"Iomega Buz Multimedia Producer" and click on "Remove".  Select the "OK"
	button to complete removal of the device.

Step 3:
	Open Windows Explorer by clicking "Start", then "Programs" and then "Windows
	Explorer". Select the drive and directory where the Buz Drivers were
	extracted.   Double click on the "Buzup" file to start the update process
	in the "Buz" folder.

Step 4:
	After the Update is complete, Close the "BUZUP" Window (if still open) and
	then Restart your computer by selecting "Start" then "Shut Down" and then
	choosing the "Restart the Computer" option, and clicking "Yes".

Step 5:
	After the system reboots,Windows will display the New Hardware Found dialog
	box for the "Iomega Buz MultiMedia Producer". If prompted for the driver
	files (inf file), click "OK", then select "Browse" and then choose the drive
	and directory where the update files were extracted to.  Click "OK", then
	"OK" again. Click "Yes" to restart the computer when prompted.

Step 6:
	Buz Display Diagnostics will run after restarting the computer. Answer the
	dialog windows when prompted to complete the driver update.  The process
	is similar to the first time the Buz was installed on the computer.

*********************************************************************************

2. Changes in this Version of the 1.2 driver

There are several changes in this version. They are listed below:

Field Reversal
	There was an issue found when a capture was done at 720x480 resolution,
	and then this clip was produced at the same resolution. The resulting clip
	would "jitter" during play back. This problem was caused by the Buz driver
	rebuilding the produced file with the video fields in the reverse order 
	of the way they were captured. This issue is solved in Version 1.2.

	Note: This Version does not solve an issue known as "3:2 Pulldown".

Video Jitter
	The known issue with "Jittering" is caused by the "3:2 Pulldown" when
	using Hollywood Video Industry formatted tapes or sources.  This is
	common among all analog video capturing boards in the computer industry.

	This situation can be seen when a single image from an interlaced Motion
	JPEG AVI video file (640x480 or 720x480) is opened on the computer
	display and a monitor is attached to the output of the Buz Box. The
	image that is displayed on the output monitor appears to shake or jitter
	while the video is paused or stopped.

	The Jitter effect is known in the Video Industry as "3:2 Pulldown".
	The problem is evident only in interlaced video footage captured from
	a video source that was re-mastered from a "Hollywood" movie. The movies
	made by the Professional movie studios are generated at 24 frames per
	second vs. 30 fps for video capture boards.   Altering of Hollywood
	movies from the 24 fps to 30fps for VHS, DVD, and Laser Disc formats
	is required to support these devices.  The alteration process is done
	in this manner, for every four frames of actual video a fifth frame is 
	generated. Estimation of the difference between 24 fps to 30 fps is
	used to generate frame. Thus when the video is digitized with
	interlacing (640x480 or 720x480), the effects of this generated frame
	are apparent.  The Jitter problem can be corrected by using devices
	that create a 30 fps format such as a camcorder, footage from a
	camcorder tape or a NTSC TV.

Conclusion:
	The effects of "3:2 Pulldown" should only be apparent when the frame
	of video is paused or is stopped on the screen.  The human eye cannot
	detect the generated frame while playing video from any source
	because the refresh rate is fast enough that the eye cannot detect it.

Secam Support
	This version enables Secam video format support for capture. The
	captured file must then be produced to Pal to be output back to tape.

Still Frame Capture in RGB Format
	Still frame captures in RGB format would result in black BMP's. This
	issue is solved in Version 1.2.

The Iomega Corp. Buz Beta Release 1
	The word "Beta" is removed from the Manufacture General Tab in
	Device Manager.