Two Pass Compression???

DataMeister wrote on 6/28/2005, 11:03 AM

Hi,

I have a lot of video to try and fit on a single disc so I rendered out my original files to AVI and set DVD-A to fit to disc. The compression rate ended up being 2.519 Mbps.

Does anyone know if DVD-A is applying two-pass rendering to the files and whether it is VBR or CBR? I was trying to decide if it would be worth my time to go back into Vegas and recompress the files using a VBR set at an average of 2.519 Mbps.

I don't want to spend a day or two rendering out the files only to have the exact same quality that DVD-A would have provided.

JBJones

Comments

ScottW wrote on 6/28/2005, 11:28 AM

I would suggest using a bitrate calculator rather than relying on DVDA's usually poor size estimates: http://www.videohelp.com/calc.htm

You don't have access to 2-pass encoding from DVDA, so if you want to use it you must do the mpeg encoding from Vegas.

Also, if you really do have that much video that you need to drop down below 5Mb/s, in my opinion you should either start looking at multiple DVD's or double layer. 2Mb/s would probably be totally unacceptable in terms of quality.

--Scott