So you got questions about audio/video? Wanna know how to rip a digital stream? Make an X/S/VCD to play on your DVD player? Maybe rip a video from VHS or TV? Find the answers here.
What are these fileformats you are adding? Do they support the program? Have you tried adding only graphics or audio? Does it crash when you add both or just the other? Is this the first time with this program you have this problem?
I think it's a software problem mostly, it doesn't checked some condition, and goes wrong then.
My suggestion is: either report it to the vendor and wait, or just head to other software.