Canon XL1 3CCD Manual

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‐Also,becausethefileiscopiedtousers’computers,theycanpassthefileamong

themselves,therebyreducingyourbandwidthcostperviewer.

‐Thedrawbackisthatuserscan’tviewanyportionofthefileuntilthedownloadiscomplete.

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Progressivedownloadfiles

‐Duringprogressivedownload,afileistransmittedthroughstandardwebprotocolssuchasFTP(File

TransferProtocol)orHTTP(HyperTextTransferProtocol),butuserscanviewthepartthathasalready

beentransmittedwhiletheremainderisstilldownloading.

‐Thisformatallowsthecliptofinishdownloadingwhileitisplaying.

‐Notaffectedbythevideoandaudioglitchesassociatedwithreal‐timestreaming.‐However,

progressivedownloadcan’tprovidereliablereal‐timeperformance.

[thewholebufferingthing]

‐Progressivedownloadistheeasiest,cheapest,andmostforgivingtypeofwebvideotoauthorand

deploy.

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Real‐timestreaming.

‐Offersthetraditionalexperienceofseeingthevideoafteronlyafewsecondsofbuffering,butitrisks

imageglitches,poorquality,andlimitingthedataratetothebandwidthavailabletotheclientatthe

timeofviewing.

‐Butprovidesreal‐timeperformanceandrandomaccesstodifferentpartsofthefile.

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Choosingacompressionformat

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Dependingontheproject,pickingthecorrectformatcanbeaneasyoradifficultdecision.

‐Afteryouchooseaformat,youneedtodeterminetheversionsofplayersthatsupporttheformat.

‐Questionstoaskwhenchoosingaformat:

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•Features

•Userbase

•Platforms

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Windowsmediaformat

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