[Frippy] “ImgBurn – any speed, any media, any …:)”
Actually, that’s not true. For instance, ImgBurn lists speeds from 1X to 56X, regardless of media inserted. Let me know when you can burn DVD-RW at 56X.
No, burn speed is determined by burner firmware and media used. Whatever the lowest speed available is will be the one that is set up in the burner firmware for that media type/brand.