DVD2ONE Help needed

[wizzy]

hi, in the new version of dvd2one you can choose betwen variable and constant ratio...A-what are the differents? B-in what case should i use one or the other?

[boldego]

Good question. I've always used variable because I used it when I made SVCD's. Gives more bits where needed I believe.

[Gurm]

Yep.

Constant compression ratio means that it'll pick a compression ratio, for example 20%, and stick with it for the entire file. That's all well and good, but what if you hit a scene that's just REALLY hard to compress, and/or loses a LOT of quality in the process?

Then you use variable compression ratio, meaning that it targets a specific size, but in boring slow-moving scenes it cranks up the compression, and in fast intense scenes it lowers it.

Overall, variable is going to give you better quality...

- Gurm

[JamesUK]

well it actualy like tells you on dvd2ones website, constant ratio should be used for "movie only" discs therefor cause the file size is much smaller than a full disc it can use the same compression therefor the movie is better quality, use varible when doin a full disk as it is supposed to be better quality in that mode.
this is taken from there site:

Select the Compression Mode:
Variable Ratio ('old' engine, as found in DVD2one V1.0 and V1.1). Recommended for Full Disk Copy mode.
Constant Ratio ('new' engine, introduced in DVD2one V1.2). Recommended for Movie-only mode, especially for long movies (2 1/2 hours and more).