Trouble with adding files The Iso runs then stops at initramfs

[Bscho]

I copy all the folders from a iso 9660 I use the original linux disk to check everything works.

I create image file from folders and make the iso I have included all the files and folders and create the iso

I make a DVD again with imageburn from the iso and it has the option of running as live, live safe mode or installing.

I have tried live and live safe mode it runs as the original disk does until it stops after about three minutes of the usual whirling cursor at initramfs

With live safe  mode I get initramfs  then says cannot find Live system

Going to try installing directly it still whirls but stops at initramfs

Need ideas what can be happening