Textures need to much ram!

Question

Hi guys, i'm quite new to java3D;
At the moment I try to create a rotating menu. It consists of a circle, and depending on the rotation angle of the circle, different actions are startet. It's a bit like one of these very old telephones. I think you know what i mean.
I create a cylinder with the height of zero, then i rotate it around the X-Axis so that I can see its top. Now i have created a flat "disc". Then i add an image with the menu text as texture to the disc.
The problem is now that the picture needs a very high resolution (about 2500x2500 pixel), otherwise the text gets grainy; when the picture is loaded, this simple application needs about 130mb ram. Without the picture it takes about 20mb... I think this is very strange, the picture itself has only about 200kb.
Here is the code where i add the texture:
      ZylinderAppearance.setTexture(new TextureLoader("sample.jpg", null).getTexture());
      ZylinderAppearance.setTextureAttributes(new TextureAttributes(TextureAttributes.MODULATE,new Transform3D(),new Color4f(), TextureAttributes.FASTEST));
      ZylinderAppearance.setCapability(Appearance.ALLOW_TEXTURE_WRITE);  
      Cylinder Zylinder = new Cylinder(0.8f, 0.0f , Primitive.GENERATE_NORMALS | Primitive.GENERATE_TEXTURE_COORDS, 100, 10, ZylinderAppearance);Is there a better way to load / add the texture? I also tried writing the text of the menu directly with Text2D(), but this text always looks ugly.
Another possibility might be to create single pictures for every text-block and add them one by one, but I dont really know how to create the tex-coordinates of round shapes..
here you can see a sample texture for the disc: http://www.bwiebertha.de/sample.jpg
thx in advance!

Answer 1

from looking online it looks as though your model can take 8Gb maximum.
I have recently been using a site called Mr Memory, they have your model listed on their site - elitebook 2740p