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readme.txt
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1995-04-27
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//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
MEDIAMATICS MPEG ARCADE(tm) Player
(C) 1993, 1994, 1995 Mediamatics Inc.
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
This is the Release 1.00.6 of the
Mediamatics MPEG Arcade(TM) Player.
This is a OM-1 compatible MCI driver enabling
Software only Decode of MPEG-1 streams.
The playback of VideoCD, CD-i and CD-Karaoke
disks is availabe by using the
"Mediamatics VideoCD Arcade Player" Device
entry.
This player reads MPEG-1 System, Video
and Audio Streams of up to 1.5Mbits/sec
from Hard Disk or ISO/High Sierra CD Roms and
plays back on a DCI enabled graphics subsystem.
Hardware Requirements:
---------------------
(1) Any 8/16 bit Wave Card with Windows Drivers.
The factory default is 16-bit PCM Wave data.
For 8-bit Cards - please configure the
driver using Control Panel/Drivers/Mediamatics Setup.
(2) For best results, a Pentium 75/90Mhz Processor
based System with 256K second level cache is recommended.
(3) For playback of CD's - any CD-ROM drive with
< 10% CPU utilization while reading 170Kb/sec
(see NewMedia Magazine article 1/6/95 - pp 22).
capable of CD-i or VideoCD playback.
NOTE: Most CD-ROM drives and firmware which support CD-i and Video-CD
playback are high-end CD-ROM Drives Typically these drives are
not found the the Multimedia Kits.
Installation Notes
------------------
IMPORTANT:
You must install the Windows driver and the runtime version of MS Video
for Windows shipped with this product before the Mediamatics MPEG drivers
to operate properly.
Use the Setup program to install the MPEG drivers from the MS Windows
Program Manager.
Once installed you will be prompted to restart Windows. The driver will
not work correctly if you do not restart Windows.
To view an MPEG, open the Media Player, select Device, select Mediamatics
MPEG Arcade[tm] Player, and browse your drive for the desired file.
To view CD-i or Video CD formats, open the Media Player, select Device,
select Mediamatics VIDEOCD Arcade[TM] Player. The CD-ROM drive should
automatically start playing your selection. (NOTE: You must have a CD-ROM
driver capable of reading the Video-CD and CD-i discs.)
Performance Tuning
------------------
Use a high performance CD-ROM subsystem for playback of
ISO MPEG CD's i.e. - any CD-ROM drive with less than
10% CPU utilization while reading 150Kb/sec.
(see NewMedia Magazine article 1/6/95 - pp 22).
The amount of CPU time consumed by your Hard Disk driver
or the CD-ROM device driver is the main culprit in
systems with poor performance. The best performance is
obtained by using Enhanced IDE Hard Disks and Enhanced
IDE CD-ROM drives connected to PCI IDE controllers.
SCSI Disks and SCSI CD-ROMS connected to PCI SCSI controllers
also offer good performance.
A performance drop of 20-40% (as seen by 20-40% poorer
frame rate) will be seen in systems with slow Hard Disk's or
CD-ROMs. Examples are older Hard Disk's connected to ISA bus
based IDE controllers which take 10% of the CPU
(Pentium 90) to read 150 kbytes/sec. ISA bus based
CD-ROM controllers take typically 30-40% CPU to read
150kbytes/sec - rendering your Pentium 90 to the level
of a Pentium 60 at best.
In comparison, an Enhanced IDE hard disk connected to
a PCI IDE controller takes about 3% CPU, and an Enhanced
IDE CD-ROM device driver (again connected to PCI IDE
controller) takes as low as 6-8% CPU when properly
configured.
MPEG has a very low data-rate unlike AVI files - therefore
the overall bandwidth available on the drive is not
as important as the amount of CPU time consumed while
reading data from the drive.
Make sure your Pentium system has a Second level cache (at least 256K)
and that it is enabled.
You can also optimize the Video peformance for the MPEG driver in the
following manner:
Open the Media Player, select Device, select Mediamatics
MPEG Arcade[TM] Player, and browse your drive for the desired file. Select
Device again, Select configure, and then click the Performance button in
the Video section. Reopen a new file for these changes to take effect.
Enhanced IDE configuration tips:
--------------------------------
Use Enhanced IDE Hard Disk and Enhanced IDE CD-ROM.
Connect only Enhanced IDE components to the PCI IDE
controller on your motherboard. Any non-enhanced
IDE components on the PCI-IDE controller force
the entire IDE system to operate at normal IDE speeds
(about 2Mbytes/sec). Enhanced IDE offers up to 10 Mbytes/sec
I/O speed.
Enhanced IDE controllers connected to the ISA bus will
not give you the same performance as a PCI motherboard
IDE controller.
Known Restrictions
------------------
Your CD-ROM drive, firmware, and drivers must comply with the Green Book,
White Book specification to view CD-i, or Video-CD encoded files.
------------------------------------------------------------------------------
All product names listed are trademarks or copyrights of their
respective owners.