Copying self - booting Cds (best program?)

[Bugman]

I use either Disc Juggler 2.0 or WinOnCd. Both work equally well. In Disc Juggler I use the standard settings, but have the disc copied and burnt Track at Once. I got the occasional coaster using Session at Once. WinOnCD for some reason adds a little extra to the disc. It boots and plays perfectly but it's just a little bigger than it was before. I've noticed that when trying to copy discs that I've converted to selfboot. If the disc is really full and I try to copy it, it says that the destination disc is too small even if it's identical to the source. I haven't tried overburning though. But Juggler will burn them with no problems.