I checked a couple episodes of these ones. I don't recall which ones but isn't these episode just a slide show with audio?
You are thinking of the picture doramas (I believe that's what they're called), which are just slide shows.
The Another Story OVAs are actual episodes though. So far we got
Prince of Naniwa 1 and 2 (Seigaku visiting Osaka for a trainings match against Shiten)
Turbulence (Atobe as 1st year)
The Trials of Rikkai (Kirihara as 1st year)
<Zaizen becoming part of Shiten>
<Another Seigaku one where Fuji tells the 1st and 2nd years a story about the 7 mysteries of their school>
Can't remember the titles for the last two.