I tested a bit more here..

I burned a v21 without editing. I got one error when verifying.

Then i burned v32 unedited, no errors when verifying.

Finally i burned a v32 edited with magic iso, and the errors are to many to count....

It seems clear that magiciso is in some way are corrupting the files, and not only the ones i edit it seems.

Is there an other way edit the files.?