Long video -> save for web solution

I have a 1h 30min long video which I have to export/ save for web and hand it to webmaster for putting on e-studies server. I have no idea how heavy such file should be so that it would play well on internet. When burned on DVD it is 4GB in size.

Can anyone estimate what would be an optimal weight of such 1h 30min video for web? And most importantly - how can I save it in the desired size? I looked at the options FCPX offers and didn't find such possibilities.

You could export a Master File from FCPx, then open it in MPEG Streamclip and export as Quicktime; set it to H264, quality 100%, audio AAC Stereo 256, deselect "Interlaced scaling" and then activate the limit data rate and start adding numbers, it will give you an estimate size. I usually use 2500 kbps for offlines.

Yesterday I did it for a 74 minutes file and it sizes 1.6 GB.

Hope it helps.

This can be tough one because really depends on the target audience and what you think their internet connection can handle. The other big factor is the content. For example, fast action sports would need a higher data rate (resulting in a larger file) than a video of talking heads.

Jan Ozer did an article which is a bit dated but he inspected some YouTube videos to see what data rates they were using.

www.streaminglearningcenter.com/articles...-new-hd-formats.html

The data rates might be a bit higher now but one way to check is find a YouTube video with similar content to yours and pick the frame size(s) you're interested and download the files and check the data rate setting. You can use a free app like MediaInfo (what you see Ozer using in his article) but if the files can play in Quicktime after downloading you can use Show Movie Inspector to see the data rate used.