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    Video Capture: Compatibility with Hard Drives & CD-ROM Drives

    Contents:

    • HARD DRIVE COMPATIBILITY
    • DROPPING FRAMES WITH FAST 32-BIT SCSI ADAPTERS
    • CD-ROM DRIVE COMPATIBILITY
    
    

    HARD DRIVE COMPATIBILITY

    
       A data rate of at least 1.4 MB/sec is recommended for capturing digital
    
       video.
    
    
    
       Note:  .AVI files are large, a high capacity hard drive will be needed
    
       if large .AVI files are going to be created and stored.
    
    
    
       The following table provides a list of hard drives and their
    
       compatibility with the Intel Smart Video Recorder and Intel Smart Video
    
       Recorder Pro.
    
    
    
       Hard Drives                            Compatibility Status
    
    
    
       Maxtor 7120A 120 MB IDE                Compatible
    
       Maxtor 7213A 213 MB IDE                Compatible
    
       Maxtor MXT-540A 540 MB IDE             Compatible
    
       Maxtor MXT-540SL 540 MB SCSI           Compatible
    
       Maxtor MXT-1240S 1240 MB SCSI          Compatible
    
    
    
    

    DROPPING FRAMES WITH FAST 32-BIT SCSI ADAPTERS

    
       Symptom
    
       In systems with fast 32-bit enhanced SCSI adapters, up to 50% of the
    
       frames are dropped when video is being captured at 160x120, 30fps.
    
    
    
       Description
    
       Frame dropping occurs when SMARTDRV.EXE loads the double buffering
    
       utility in the CONFIG.SYS file.  SMARTDRV will then slow down some
    
       system functions, including video captures.
    
    
    
       Solution
    
       To prevent fast 32-bit SCSI systems from dropping frames:
    
    
    
       Remove SMARTDRV.EXE from your CONFIG.SYS file.
    
    
    
            OR  
    
    
    
       If you need SMARTDRV.EXE for double buffering, capture some video at
    
       320x240 before doing your 160x120 capture.  SMARTDRV will adapt to the
    
       needs of the 320x240 capture and will capture subsequent frames (until
    
       the computer is rebooted) correctly at 160x120 and other resolutions.
    
    
    
       Note:     By default, Windows copies SMARTDRV.EXE into both the
    
       CONFIG.SYS and the AUTOEXEC.BAT files. This allows SMARTDRV to use less
    
       conventional memory. The SMARTDRV in the CONFIG.SYS takes less space and
    
       doesn't become active until it's executed by the AUTOEXEC.BAT file. 
    
       However, SMARTDRV will run fine if it's only loaded in the AUTOEXEC.BAT.
    
       The only reason SMARTDRV needs to be in both the AUTOEXEC.BAT and
    
       CONFIG.SYS files is if you have an older SCSI drive that needs double
    
       buffering.
    
    
    
    

    CD-ROM DRIVE COMPATIBILITY

    
       Most CD-ROM drives on the market will work with the Intel Smart Video
    
       Recorder and Intel Smart Video Recorder Pro.
    
    
    
       You cannot capture motion video on a writeable CD-ROM drive, because the
    
       data rate of the drive is too slow.  A data rate of at least 1.4 MB/sec
    
       is recommended for capturing digital video.  Check with the manufacturer
    
       of your CD-ROM drive for more information.
    
    
    
       The following table provides a list of CD-ROM drives and their
    
       compatibility with the Intel Smart Video Recorder.
    
    
    
       CD-ROM drive                           Compatibility status
    
    
    
       NEC CDR-74-1                           Compatible
    
       Plextor 4Plex PX-43CH                  Compatible
    
       Texel DM-3024                          Compatible
    
       Toshiba 3401-TA                        Compatible
    
    

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