I have been running Toast 1.03 for couple of years on a G5 tower (OSX 10.4.8) without any problems. I am now running it on a new MacBook core 2 duo (OSX 10.4.8), but cannot mount a disc image. I am prompted with the following message. "Disc Image.toast" cannot be used because it is not a valid DVD Video image. Has anybody else run into this problem or have a possible solution. Any help would appreciated.