Andy Merrett writes... Yes, it's another instalment of the HD DVD versus Blu-ray debate / war, but this time things are a little different. Instead of a war of words between various equipment manufacturers and official associations on both sides, this is to do with lawsuits. We've spent a lot of time reporting on lawsuits - a lot of them come from Apple - but Sony has been hit with two in a single week. They both affect Blu-ray.