Lossless output smaller than original

[jriker1]

Subject kind of says it however I have a 45 minute clip that is 1.8GB and has an average bitrate of 5,130 Kbps.

I run it thru the following script:

import ("D:\Program Files (x86)\AviSynth 2.5\QTGMC-3.32.avsi")
DirectShowSource("D:\Conversion\2 - Working\Rodgers\title00.mkv")
AssumeTFF()
QTGMC(preset="Slow")

I run it thru VirtualDub with settings:

• Video > Fast Recompress
• Audio > Direct Stream Copy
• Video > Compression > Lagarith > Mode YUY2

Resulting file is 559 MB and it says the overall bitrate is only 1,559 Kbps.

If I look at the file in MediaInfo where the above info came from says Compression Mode: Lossless.

Any idea what's going on here? Note original source comes off a DVD.

Thanks.

JR

EDIT: I just saw a potential problem. Entire clip is black. When I scroll thru the source file in VirtualDub it's there and shows everything so not sure why the output is black. Took about 3 hours to render and guessing most of the file size is the audio output.