"There are currently three versions of the package on offer with this edition sitting in the middle. At the low end we have Studio 9 (£50 inc. VAT) that serves as an introduction and lacks HD and Blu-ray support, while sat at the high end is Studio Pro 9 (£90 inc. VAT) that comes with everything found in this edition but with the added bonus of more transitions and editing effects, Cinescore themes and extra software in the form of Sound Forge Audio Studio 9, which is a sound editing package. Choosing the right one for you comes down to your needs and whether HD plays a part.
Sony Vegas Movie Studio 9 Platinum offers a host of new features that make it a great deal easier for the novice user to get to grips with the package. That's not to say experienced users won't find benefits of upgrading, it's just that the software has clearly been reworked to appeal to a broader audience."