[RaZEr]

Первое что мне попалось на глаза на оф.сайте конторы о софте которой идет речь, так это FAQ. И самое главное, что в нем содержиться вполне конкретный ответ:

How can I encode multiple documents at once?

A. Are you using the LVP (Pro) Edition? If not, the Desktop version of the LVP will only allow single document conversion at one time.

B. If you are using the Professional Edition, you can use one of the following methods:

Set the LizardTech Virtual Printer (Pro) as your default printer. Then, within Windows Explorer select multiple documents, right click, and select print. Just as printing these documents to a regular printer will begin a complex process of opening applications, printing, and in some cases, displaying dialog boxes, so too the LVP will follow these steps. In order to make sure your job runs through completely, wait for the documents to queue up in the LVP dialog box. If any Windows dialog boxes are displayed, or applications still open, it is likely the print job is still pending. Once all dialog boxes are closed and all jobs are spooled, you will see a list of your documents in the left pane of the LVP dialog box. Once all these jobs are ready, select Encode and all the documents will now be converted in the order they appear in your window.

Alternatively, you can select one or more documents to be encoded as described above. Then, within any application, you can select File, then Print, and choose the LVP. This will route your print job to the LVP where it will take its place in the queue.