OK we're maybe mixing up a couple of things here.
First MUDDING: yes, sometimes (maybe most of the times) people here do that too. However, if you choose drywall with rounded edges, people sometimes choose to leave the seems as they are. They just mud the screw holes (or as in my case, tack holes). This is mostly used on ceilings. In small(er) rooms, you can use one drywall panel for the entire width. If not, you can round of the "top and bottom" edges to get a seem there too.
Like this (but of course the screw holes are still unmudded here):
![](http://niemendalletje.web-log.nl/niemendalletje/images/gips.jpg)
If you choose to mud the seems it looks like this:
![](http://www.azklus.nl/foto1_files/image008.jpg)
To accomplish that you need to put some glassfiber "tape" on the seems to enforce them and then mud.
It's a matter of taste and/or laziness.
However, if you choose for that, you need to select the drywall with the rounded edges. They don't get flatter at the ends, like the one's I accidently bought.
Those one's are meant for PLASTERING. So, after you finished the drywall, the _entire_ wall gets plastered like that guy is doing on that youtube video.. Don't really see a reason to do that, but I bet there are good reasons.
Then there's the "membrame" you mention that DarhNuno used. This stuff is glassfiber "wallpaper". Wish you could read the text here, but the pictures also tell something about it:
http://www.behangenschilderwerk.nl/glasvezelbehang.htmThis is (was) originally often used on rather poorly finished walls. The glassfiber hides and enforces cracks etc.
The stuff is colorless, but has a pattern, usually a mesh pattern, but as the link shows there's many more. After putting it up the walls it can be painted with any color. The pattren gives a more "warm" feeling compared to a wall that's been directly painted. It's also strong and durable.
Here's a pic of DarthNuno's finished wall:
![](http://www.dragonslairfans.com/room/sec3.jpg)
As you can see here (
http://www.dragonslairfans.com/smfor/index.php?topic=32.msg325#msg325) Darh first mudded the seems and then applied the glassfiber "wallpaper". I don't think you would get away with applying it directly over the seems.
This glassfiber "wallpaper" has become very very popular here the last couple of years because it's pretty easy to do and gives a very tight looking result.
Ahhh, hope that's all clear, it's not often that I experience a language barrier in English, but this thread is pretty hard on that. Tried my best !
![Smiley :)](http://newforum.arcadecontrols.com/Smileys/default/smiley.gif)