Iomega Buz
Technical Information from Iomega

Index

1. Field Reversal/Order Problem
2. Video Jitter
   • Conclusion
3. Ultra SCSI Configuration
4. S3 Vision 968/868 memory bug
5. Resetting the Extended System Configuration Data
   • AMIBIOS
   • Phoenix Technologies
   • Award BIOS
6. PCI 2.1 Compliance, Bridge Chip Support and Multifunction Cards
7. Optimizing the PC for video capturing performance
   • High Quality Settings:
   • Capture Settings
   • Generic:
   • Windows 95 Settings
8. Reserving Interrupt Requests with the Buz Multimedia Producer
9. How to Boot from a SCSI drive
   • How to select a SCSI boot drive
   • Booting from Removable Media
10. Buz Drivers Version 1.2 Installation Instructions (4/28/98)
    • How to install the drivers
    • Changes in this Version of the 1.2 driver
    • Field Reversal
    • Secam Support
    • Still Frame Capture in RGB Format
    • The Iomega Corp. Buz Beta Release 1
11. Buz and Third Party Codecs

This problem presents its self when capturing video and adding an effect like text to a segment in the video and then produce the clip. The Field Reversal/Order Problem is most noticeable when the objects in the video clip have diagonal lines. Vertical and horizontal lines in video clips don't show the problem. "Stair stepped or Jagged" edges tend to show up in video clips that have been produced. Installing the new 1.2 driver will fix this problem.

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

1. Boot the Computer.
2. The AdvanceWare screen appears immediately after the system starts to boot up. Press Ctrl-A. when the light blue AdvanceWare block appears.
3. Select Adapter Configuration when the AdvanceWare menu appears, using the up/down arrows on the keyboard and press Enter or Spacebar.
4. Select Ultra SCSI Feature in Adapter.
5. Enabled the Ultra SCSI Feature by highlighting then press Enter or Spacebar.
6. Press Esc until you return to the main menu, then select Write Setup and Exit, select Yes to Write the configuration and exit. This will save the changes you have made. The AdvanceWare utility will automatically reboot the system, allowing the configuration changes to take effect.

Erratic system behaviour can occur if an S3 968/868 based video card and a Buz Multimedia Producer installed on a PC. The problem is caused by the S3 Vision 968/868 video controller, which is used on the Diamond Stealth 64 Video 3000 series, Number Nine 9FX motion 771, and other popular video cards, all contain a memory bug. This bug may cause problems with the Buz Multimedia Producer. The 968/868 claims to require 32 MB of memory, but it actually decodes 64 MB of memory. The Buz Multimedia Producer can be mapped by BIOS and/or Windows 95 into the 968/868 memory decode address. To solve this problem Buzdiag.exe detects and adjusts the memory range of the Multimedia Portion and/or the SCSI portion of the Buz card away from the S3 Vision 968/868.

If Buzdiag.exe fails to resolve the conflict you can manually adjust the memory range by following the steps listed below:

How to view the memory ranges

1. Right click on My Computer
2. Select properties
3. Select the Device Manager tab
4. Expand the display adapters tree (click on the plus sign)
5. Double click on the video card
6. Select the Resources tab
7. Scroll down the Resource Settings and write down the memory range
8. Click cancel
9. Expand the SCSI controllers tree
10. Double click on the Iomega Buz PCI Ultra SCSI Host Adapter
11. Select the Resources tab
12. Write down the memory range
13. Click cancel
14. Expand the Sound, video and game controllers tree
15. Double click on the Iomega Buz Multimedia Producer
16. Select the resources tab
17. Write down the memory range
18. Click cancel
19. If the video card has the memory range of F0000000-F1FFFFFF the Buz SCSI or Multimedia devices will likely get F2000000-F2FFFFFF. This is a conflict because the video card is actually using F0000000-F2FFFFFF.

To adjust the conflicting device by

1. Select the Device Manager tab
2. Expand the corresponding tree (click on the plus sign)
3. Double click on the conflicting device
4. Select the Resources tab
5. Uncheck use Automatic Settings box
6. Double click on the Memory Range
7. Use the scroll bars to adjust the memory range. In the example the video card is using F0000000-F2FFFFFF. So adjust the conflicting device to F3000000-F3FFFFFF
8. Click Ok
9. Reboot

The BIOS stands as the first link between hardware and software in coordinating the startup configuration of computers. A Plug and Play BIOS automatically configures the computer's hard drives, disk drives, processors, chipsets, interrupts, and memory configurations. This information, which is refereed to as Extended System Configuration Data (ESCD), is stored into NVRAM. A NVRAM device maintains the ESCD to provide the Plug and Play operating system a constant configuration every time the computer is turned on or reboot once the systems is properly configured. If you install the Buz card and notice a hardware conflict or erratic behavior, reset the ESCD. Listed below are the procedures of how to reset the ESCD for different BIOS manufactures.

Note: Also See: Buz CLCA White Paper "I2VXINI Not Responding" for additional methods of resolving system resource conflicts.

Creating a PnP environment: Process for Freeing up system Resources
NVRAM #ESCD##BIOS Manufactures Procedure

AMIBIOS

1. Shut down the computer
2. Install the Buz card.
3. Hold Down the INS key.
4. Turn On the Computer.
5. You should on the screen NVRAM cleared, and it should not appear again
6. Start Windows 95

1. Shut down the computer
2. Install the Buz card.
3. Go into the BIOS Setup and find a field labeled, "Reset configuration data."
4. Set this field to "yes".
5. Save and exit the Setup program. The system restarts and clears ESCD during POST.
6. Windows 95 will automatically configure your system and load ESCD with the new data.

1. Shut down the computer
2. Install the Buz card
3. Go into the BIOS Setup and find a field labeled, "Reset configuration data"
4. Set this field to "Yes"
5. Save and exit the Setup program. The system restarts and clears ESCD during POST.
6. Windows 95 will automatically configure your system and load ESCD with the new data.
7. Continue with the installation

Note: Some PC manufactures developed their own BIOS software. Please contact your computer manufacture for more information.

The Iomega BUZ card is a Multifunction PCI card. This means that Iomega has taken the function of two PCI cards and integrated those functions on one card.

Iomega customers benefit by getting two completely independent functions that take up only one PCI card slot in their computer. Video Capture and Playback are done by the built in video chip set with resolutions up to 720x480 @ 29.97 fps. The Ultra SCSI adapter will provide 20MB/sec data rates and support any standard SCSI device, Jaz drive, Zip drive, hard drive, scanner, and etc.

Iomega engineering followed PCI Local Bus Specification 2.1 in the design of this card for reliable operation and multifunctional device support. This specification is the industry standard for the PCI 2.1 communication bus on the motherboard. Computers and PCI devices (like BUZ card) that fully support PCI 2.1 will work together. The component on the Iomega BUZ card that allows multifunction performance is a "Bridge" chip. The bridge chip connects your computers PCI bus to the Video and SCSI controllers on the BUZ card. The bridge chip has an internal traffic cop that allows PCI bus communication to only one of these controllers at a time.

The Iomega BUZ card must be connected to a computer that supports Multifunction PCI cards which is 2.1 PCI specifications or it will not operate correctly. Most of the computers that Iomega identified as not BUZ compatible are due to the inability of these computers to support any PCI multifunction cards, including BUZ. The great majority of computer manufacturers follow PCI Local Bus Specification 2.1. Some manufacturers have not instituted all of the needed design requirements on all of their models. Some PC manufactures only configured one PCI slot to meet 2.1 PCI Compliance. This means that Buz customers will have to locate the one PCI slot that supports 2.1 PCI Compliance and install the Buz card into it. Examples of the way manufactures do not support the needs of multifunction cards are; insufficient number of interrupt (IRQ) lines connected to the PCI expansion card slots or the computers BIOS does not support multifunction cards.

High Quality Settings:

Capture Settings

• 720 X 480 @ 29.97 fps
• Use S-Video source and High Quality Cables
• S-VHS tapes and decks

• Optimize Capture Drive by:
• Scan for disk errors
• Defragment
• Close all other applications
• Exit all applications that load automatically during boot
• Disconnect from Network

• Change "Read ahead optimization" to "None" on the slider.
  Settings/Control Panel/System/Performance/File System
• Select "Disable write-behind caching for all drives".
  Settings/Control Panel/System/Troubleshooting
• Un-select "Audio Insert Notification".
  Settings/Control Panel/System/Device Manager/CD-Rom/Settings
• Select DMA whenever using U-DMA drives.
  Settings/Control Panel/System/Performance/Device Manager/Disk Drives/Disk Drive

Standard computer systems have only sixteen Interrupt Requests. This document was written to resolve conflicts with interrupt requests. One way is to reset the NVRAM; this option is only available if your BIOS support this feature. Another way is to manually reserve Interrupt request in the BIOS and/or Operation System (OS) before installing the Buz card. Modifying resources using Windows 95 is not always going to work because not all devices are dynamically configurable. It might be necessary to remove or disable unused devices to free up extra Interrupt Request.

Note: Only computers with Windows 95 OSR2 or higher can have PCI devices sharing the same Interrupt Request.

Using the systems BIOS to reserve Interrupt Request

1. Install the Buz card
2. During boot up enter BIOS setup (This is different for each system.)
3. In the BIOS setup go to the PCI/PnP configuration (This is different for each system)
4. You should see a list of Interrupt Requests and DMA channels. The Interrupt Requests have 2 different settings, PCI/ISA PnP and Legacy ISA. If set to PCI/ISA PnP allows the BIOS so assign an Interrupt request to the device. If set to Legacy ISA this interrupt is not used unless a device specifically calls for it or the operation system assigns a device to it.

1. Make sure you don't have the Buz card installed.
   1. You can skip this section if you have not installed the Buz card before
   2. Uninstall by using the maintenance setup.
   3. Go to Device Manager (Click Start on the Taskbar, Choose Settings, Control Panel, double-click on System and Click on the Device Manager Tab)
   4. Expand the SCSI controller tree (Click on the + sign to the left)
   5. Remove the "Iomega Buz PCI Ultra SCSI Host Adapter"
   6. Turn off your computer.
   7. Remove your Buz Card.
2. Start Windows 95
3. Go to Device Manager (Click Start on the Taskbar, Choose Settings, Control Panel, double-click on System and Click on the Device Manager Tab)
4. Double-click on "Computer" at the top of the list.
5. Click on the Interrupt Request radio button
6. Scroll down and note which Interrupt Requests that have PnP devices
7. Click on the Reserve Resources Tab
8. Click on Interrupt request radio button
9. Click on the Add Button.
10. Select The Interrupt request you would like to reserve (Buz requires two interrupt requests so add two if applicable).
11. Reboot your computer
12. Go to Device Manager note if any devices are in conflict with your reserved resources
    1. You can skip this section if there is no conflicts found in Device Manager
    2. Select the device with the conflict
    3. Click on Properties
    4. Click on Resources Tab
    5. Click on Set Configuration Manual button and/or Uncheck the Use Automatic Settings check box.
    6. Double-click on Interrupt request under Resource Type
    7. If you are unable to modify the value leave everything the same and follow Method One to try and move it during boot up.
    8. If you were able to change the value to an open Interrupt Request. Make sure Use Automatic Settings is not check.
    9. Click Ok.
    10. Reboot
    11. Return to Device manager to verify that your setting were resolved the problem.
13. Double-click on Computer at the top of the list.
14. Click on the Reserve Resources Tab
15. Click on Interrupt request radio button
16. Delete all Reserved Interrupt Requests
17. Reboot and continue with the Buz install.

Many of the new motherboard BIOS have functions that allow the user to choose the PC boot device. (IDE, SCSI, floppy, network, CD-ROM, floptical.) Older motherboard BIOSs look for IDE drive before SCSI drives to boot from therefore no IDE or ATAPI hard drive can be connected to the motherboard if trying to boot from a SCSI drive.

How to select a SCSI boot drive

1. Reboot, if the computer is on.
2. Press Ctrl-A, when the light blue AdvanceWare block appears on the screen, immediately after the system starts to boot.
3. Select SCSI Configuration from the menu, using the up/down arrows on the keyboard and press Enter or Spacebar.
4. Go to the BIOS Target Control line in the SCSI. The computer will not boot from a SCSI ID that has No selected, but the computer can still access and the device and it will function properly. Select Yes to in able booting capabilities for that device.
5. Press Esc until the main menu screen is displayed, then select Write Setup and Exit, select Yes to Write the configuration and exit. This will save the changes you have made. The AdvanceWare utility will automatically reboot the system, allowing the configuration changes to take effect.

1. Reboot, if the computer is on.
2. Press Ctrl-A, when the light blue AdvanceWare block appears on the screen, immediately after the system starts to boot.
3. Select SCSI Configuration from the menu, using the up/down arrows on the keyboard and press Enter or Spacebar.
4. Select Adapter Configuration, using the up/down arrows on the keyboard and press Enter or Spacebar.
5. Select Removable Media Support in Adapter Configuration.
6. Change the Removable Media Support by highlighting Enabled then press Enter or Spacebar.
7. Press Esc until you return to the main menu, then select Write Setup and Exit, select Yes to Write the configuration and exit. This will save the changes you have made. The AdvanceWare utility will automatically reboot the system, allowing the configuration changes to take effect.

General Note: Occasionally the Operating System dislikes having the SCSI adapter assigning the drive letters. Force the adapter to assign the first drive letter and let the Operating System assign the rest.

1. Reboot, if the computer is on.
2. Press Ctrl-A, when the light blue AdvanceWare block appears on the screen, immediately after the system starts to boot.
3. Select Adapter Configuration, using the up/down arrows on the keyboard and press Enter or Spacebar.
4. Select Multiple Drive Support in Adapter.
5. Change the Multiple Drive Support by highlighting Disabled then press Enter or Spacebar.
6. Press Esc until you return to the main menu, then select Write Setup and Exit, select Yes to Write the configuration and exit. This will save the changes you have made. The AdvanceWare utility will automatically reboot the system, allowing the configuration changes to take effect.

How to install the drivers

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 Buzupdate file will extract three files:
   • Buz
   • Buzup
   • Readme
2. Click on the "Windows 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 "Yes" 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 "Yes" button to complete removal of the device.

3. Open Windows Explorer by clicking "Start", then "Programs" and then "Windows Explorer". Select the drive and directory where the Buz Drivers were expanded. Double click on the "Buzup" file to start the extraction process in the "Buz" folder.
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.
5. Windows will display the Found New Hardware dialog box, for the "Iomega Buz MultiMedia Producer" after the restart. If prompted for the driver files (inf file), select "Browse" and then choose the drive and directory where the update was extracted to, then click "OK". Click the "Finish" button and then "Yes" to restart the computer when prompted.
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.

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

Video Jitter

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 can not detect the generated frame while playing video from any source because the refresh rate is fast enough that the can not detect it.

Secam Support

Iomega does not support third party codec(s) with Buz Multimedia producer these drivers are not the same as ours. Some third party codecs do break VideoWave because there is no API interface for the silent settings. Use of a third party MJPEG hardware codec will not provide full functionality for the Buz card, and third party codecs could damage the board because the drivers were not designed for our chipset. Use of the third party codex could void the warranty on Buz.

The following codec(s) are known to be used with Buz:

Company:	Paradigm Matrix M-JPEG Codec
Software Name:	Paradigm Matrixs software/hardware codec
Version:	Release Version 1.10N February 28,1998
Notes:	This codec is developed for MJPEG editing. A central computer with MJPEG hardware support captures the video clips and other computers edit the video with this codec. It is unknown what the quality of the video is when edited with this codec and ported back to Buz.

1. During video capture, playback, and previewing edits no video was sent through the output of the Buz card.
2. During playback the hardware was not used. This caused very poor video playback quality.

Steve Haehnichen