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Converting from wmv to h264 - larger file size

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Gabe Clark
Converting from wmv to h264 - larger file size
on Jan 9, 2012 at 9:06:18 pm

So even though I made every little detail in the export options the same or smaller (I even had a significantly smaller bitrate), the file size is always like twice as big as my original wmv file.

The original file:

video
01:10:00
1680x1050 (yeah, its a desktop dimension..)
data rate 4576kbps
total bitrate 4624kbps
29fps

audio
bitrate 48kbps
mono
sample rate 44kHz

263 MB


Ok so I'm using the following specs to encode:

H.264
multiplexing mp4, stream capability none
NTSC 1680x1050 square pixels
Main profile level 4.2
29.97fps progressive
AAC 48kbps 44.1kHz mono
VBR 1 pass
target 3.00 max 4.62 Mbps (with this bitrate it should be a lot smaller right?)

So yeah.. my file size after exporting is 666 MB (MARK OF THE BEAST O.o)

Any ideas? These videos are going to be hosted and streamed from our server so the file size needs to be small but they are also pretty high def, obviously I thought H.264. Starting to get a little frustrated.

Still learning when it comes to video. Any help is greatly appreciated :)


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