False alarm! Found a old similiar post where it mention that a format would take 15 minutes. Sure enough, exactly 15 minutes later it finished the erasing and continued on. This is a new PC and my first with a DVD, although I've burned DVD+RW before, I don't remember the Format/Erase taking that long or maybe I just wasn't present to watch. From Windows, it doesn't take no where near 15 minutes to format.
The first time it takes a bit long time to format it correctly. The next time when you format with ImgBurn it will only take some seconds. Other programs do not really format the disc in a proper way, that's why they are faster.
Yes, I believe you are correct. I burned the same image using another app and you can see the burned section on the disc but on the one with ImgBurn the entire disc is burned.
Who ever wrote this app had a sense of humor also with the comments that show up!