I used to enjoy doing the car insurance (accident reports) transcripts and now there isn't any of those. Also, most of my previews that I listen to (to see if I want to do the transcript) are all the same. It's the same person starting out by saying, "Five O'clock ....". It doesn't matter if it's a five minute transcript or a two minute one, the preview is the same.
the transcripts are there, listed under verbatim for requester speechink. And the preview is always the one that you had to do for the qualification test, which was pretty easy to understand, don't know why they do that, but i wish they'd change it.