Depending on what mod it is exactly. It might not like certain games such as; hacks, images that do or don't have the update removed, region patched games (some may work but others won't). Maybe it's possible that it's an old modchip and some of the last games made don't work..but I'm not sure about that. I have WODE and it required firmware updates for the last games made (pretty much only the DVD9 releases iirc but maybe I'm wrong about that idk).
Other factors might be the media you're using for burning. Are the discs all exactly the same manufacture (not brand,
manufacture)?
It's really hard to say without knowing what modchip it is for starters. If you knew that you could do some research about possible compatibility issues
