We've been noticing lately that some of the discs we've tried to copy can't fit on the 4.7 GB disk. Our latest tricky one is a concert DVD (Meatloaf with the Melbourne Symphony Orchestra) - we have the older version of CloneCD.
Should we upgrade our copying software? Or are there other tricks? Or should just get the bigger disks? (We tend to copy concert DVD's more than movies, actually.)