Yeah when I used the ps3 media server first, it only displayed the movie length.
As a double-check, I've just downloaded the (deprecated) Version 1.00 of the software & sure enough only the Movie Length is displayed. So it's not a PS3-side issue that causes the full file details to appear, I'm on ps3 update 2.80. I've attached a screen-shot for the sceptical
Cheers to anyone who can help with this!