Reduce the volume of the cylinder

[killr]

which programs use for Reduce the volume of the cylinder

because my DVD size 5 GB

My DVD Include the following

1-win xp pro silent

2-win xp Normal

3-linux knoppix

4-linux dsl

5-Ophcrack

6-boot cd

however, how to compress my dvd I was mkisofs but seam size 5GB

Second question which speed burn dvd best

[atolica]

lol. Cylinders as I know, are only used in harddisks.

You can't do much. Optimize the Iso maybe. See Ultraiso optimization!

[c3rb3ru5]

Go here: Duplicate Files linker. Scroll to the bottom of the page and dl the dfl.zip

c:\...>dfl [path] link -d

then on mkisofs add option -f