What are the benefits of embedded transcripts vs. external transcripts?
There are three:
1. You can put the cursor over a word you have trouble reading, and the transcript of that word will appear in a tooltip. You can also display the entire line of text for better contextual understanding.
2. You can copy and paste selected text from handwritten pages to another computer document, such as a Word file, as part of your research and knowledge discovery activities.
3. You can perform search and retrieval operations on handwritten pages, allowing handwritten pages to be integrated with printed pages in one archive.
http://www.planetdjvu.com/embedding_transcripts_in_handwritten_pages.htm