Mpeg file size balloons after exporting as FLV or MOV?

[jjachin]

Completely new to this world, so please forgive if this is a no brainer.

I have an 8 minute company DVD that I want to convert to a digital file in order to call it from a Flash menu. (My goal is to bring the video file into Flash CS4 as an FLV and include a play/pause/volume skin to it.)

I grabbed the VOB file using MPeg Streamclip and exported/saved it as a an mp4 with a file size of 69MB. When I take the mp4 and bring it into Adobe Media Encoder to convert to an FLV, the file size balloons to 108MB. I also tried pulling the mp4 into FinalCut and exporting as a Quicktime .mov file just to see if that was any better and it goes to 155MB.

What's going on?

[Baldrick]

Lower the video and audio bitrate to get smaller file size. It may sometimes just be called as different quality settings, lower quality=smaller size.

But you can also use mp4 in flash(if you use h264 video and aac audio).

[tomlee59]

Completely new to this world, so please forgive if this is a no brainer.

I have an 8 minute company DVD that I want to convert to a digital file in order to call it from a Flash menu. (My goal is to bring the video file into Flash CS4 as an FLV and include a play/pause/volume skin to it.)

I grabbed the VOB file using MPeg Streamclip and exported/saved it as a an mp4 with a file size of 69MB. When I take the mp4 and bring it into Adobe Media Encoder to convert to an FLV, the file size balloons to 108MB. I also tried pulling the mp4 into FinalCut and exporting as a Quicktime .mov file just to see if that was any better and it goes to 155MB.

What's going on?

Filesize = runtime * bitrate.

It's that simple.

Want smaller files? Then lower the bitrate.

The catch, of course, is that quality is also a function of bitrate. Different codecs will deliver different quality at a given bitrate. That's one reason that different codecs exist.