2 Passes means 2 encoding compression attempts?

[JC00]

I followed the instructions here:
http://www.nanomessiah.com/software/
Everything is ok but I'm just wondering if I'm just wasting my compression time with having 2 jobs under VirtualDub's Job Control. TCan anyone enlighten me on this?

[adam]

Multipass encoding optimizes the encode with each pass. After each pass it stores data about your source and uses it in subsequent passes. It can increase quality and probably more importantly it enables you to specify a set average bitrate which means that you can predetermine the output filesize. Without this ability it is often a shot in the dark how big your file will be.

Whether the extra encoding time is worth it to you is your opinion. Personally, I always use multipass encoding.