Limitations and Restrictions

Limitations and Restrictions

DirectX foundation must be installed before you install Optibase VideoPlex XPress driver. DirectX foundation can be found on the VideoPlex XPress CD under \DirectX6.0\DirectX Foundation\ directory.

If you are installing the Optibase VideoPlex XPress MPEG decoder board, you must use the latest driver installation image included in this CD under \Optibase\VPXpress after you install DirectX foundation.

When using the Optibase VideoPlex XPress MPEG decoder card with the IP/TV Viewer, the fullscreen mode works only on Win95 or Win98 when the VideoPlex XPress is in the VPE mode and used in conjunction with an ATI VGA card.

The Printing program listing is not supported.

Minimum requirements are: 100-MHz Pentium processor (133-MHz for MPEG1,

300-MHz for MPEG2 at 3 Mbps,400-MHz for MPEG2 at 6 Mbps). Frame rate may vary depending on your VGA adapter and network interface card.

The DSP Group Truespeech ACM codec is not capable of handling packet loss and is unsuitable for streaming in the IP/TV environment. Audio distortion occurs after tuning in for a long period of time (greater than 24 hours). Once the audio problem occurs, you must close the program and retune into the same program.

Indeo codecs are not supplied with IP/TV. You can download them from the following website if needed:

http://developer.intel.com/ial/indeo/video/driver.htm

When viewing a program containing a video stream, The Edit>Copy Image menu item in the client video window may result in a blank image copied to the clipboard. This problem is due to limitations in some graphics cards and video codecs.

When using the Optibase VideoPlex XPress to watch video over a long period of time, on some PCs the video may eventually break up into a blocky static. This problem is a result of a bug in the hardware of the Optibase card.

The Optibase Live Capture Video Card is not supported on Windows 95 for the Demo Server.

4Release Notes for IP/TV Viewer Release 3.0

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3Com 78-6162-01 manual Limitations and Restrictions

78-6162-01 specifications

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