Suikoden 4

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I have read through the forum and recognized that I seem to have the same problem with Suikoden 4 like the people have with part 3, nevertheless there seem to don't exist a solution. Hopefully you can help me.

I wanted to make a backup of Suikoden 4, I have used a Verbatim DVD-R, my PS2 has a new laser and I have copied with RecordNow Max. It doesn't work. The Playstation 2 logo shows up and this is a sign 'booting' right? But then only a dark screen remains.
I have made two backups this way and they work both (FF X-2 and Devil May Cry 3).
Although I had a similar problems with DMC 3, the Playstation 2 logo showed up and then there was this black screen too, after that I have made another copy of DMC and it worked, but I have made already two copies of Suikoden 4 too and it doesn't work. I have a mod chip.

What is the problem? Thanks in advance.