Did a couple searches and didn't see this discussed...maybe it's old news, but it looks like OS 4.5 has resolved one of the most annoying bugs in previous BB 4.3 OS releases, namely the way audio and video files would disappear from the listings in the BB Media Manager.
I would copy MP3s or videos to my 8GB SD card and then cross my fingers hoping that they would appear in the media manager on the BB when I went to try to play them. Some would, some wouldn't...various work-arounds helped, but it was a pain in the butt...
So far on OS 4.5 I haven't had any issues w/missing MP3s or videos...after the upgrade to 4.5 everything on my card showed up (including those that weren't showing up in OS 4.3) and I just added more MP3s and videos to my 8 GB card and I still can't find anything missing.
Hopefully this will hold up...if it does I'd say the release was worth it just for this one fix.
Anyone else seen this?