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Site Graphics and Multimedia Design Forum

    
Movie formats and file sizes
gayleann




msg:858991
 7:07 pm on Dec 28, 2005 (gmt 0)

I am posting video clips on a client web site for the first time and have 2 questions. Our typical viewers would visit our site from work or over a DSL or cable connection.

1. We're trying to figure out which format to use. What percent of viewers can readily view (without downloading a plus-in) a QuickTime movie? an MPEG-4? an MPEG-3?

2. What is a reasonable file size to post? In computing this, I hate to trust the connection speeds which commercial DSL and cable modem venders advertise, but I'm not sure where to get reliable figures on typical connection speeds.

Thank you!

 

sengo




msg:858992
 9:46 am on Jan 2, 2006 (gmt 0)

suggest you could convert the movie as "swf" so that you could get benfitted by lower file size rather than any other movie file formats.

creatica




msg:858993
 1:11 am on Jan 24, 2006 (gmt 0)

There are three main video players - Quicktime, RealPlayer and Windows Media Player. I would suggest you format it for one of these.

They are all pretty good for streaming, I think quicktime does progressive download better, though.

If your audience is all windows, then windows media player would probably be best re market penetration. I'm not sure of the market penetration between quicktime & realplayer, I think quicktime is better and I know people in the video industry love it. Either way, they may have to download both of them.

I'd go for a resolution of 240x320, and for each clip to be no longer than 3 minutes. The longer your clip is, the more change of it stopping to buffer.

File-size is always a trade off between quality and download time.

Some tips are: try not to have many fast moving or complex shots in the video and if you can, expand the colour range of the video to suit the web - video black will look grey on a computer monitor. Making this "grey" black helps compression and looks better.

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