Finally I found a best solution for compressing then store it on a DVD only!
Now I'll show my steps for anyone who want to store data like me.
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Programs: -----------------
Steps:
1> Use Ultra ISO to compress *.iso into *.isz
( I chose method compression: Normal and get file with 3.5GB from 5.1GB. It's amazing! )
2> Use Daemon Tool to mount and play that *.isz
3> Burn data on Disc!
( if you want to store )
That's it. I have compressed Ready2Go Collection v4 (5.1GB) into my data (3.6GB).