Sounds like a dodgy HDD problem or a usb driver problem on PS3, have you tried copying videos and pictures from a media server app running on a PC, just to see if its USB related or HDD only. also try an app like comgenie filemanager, this works on a lower level without needing xmb files so it might work if its a firmware issue. Also maybe your file and folder permissions have been messed up, try look at file permissions by copying some files to PC if you can and checking . Strange issue... good luck with it. maybe a previous payload created some wierd file permissions, I did hear of a permission fix pkg but I never needed it myself so havnt researched it.
I can use PS3 Media Server to stream video files to the PS3 just fine. I haven't tried copying files this way and I wasn't aware I could do that either.
I did use MultiMAN and Comgenie filemanager to try and copy files to the appropriate directory on HDD.
As to the file permissions, that was brought to my attention as well. I had been swapping payloads for a good while. I used the (.pkg) for permission fix but I believe that only pertains to games. Anyhow, it didn't help out either.
I was told to try dev PL3 or NUS PL3 and do all my copying and installing from one of those two payloads. Well, I tried FTP with both NUS & dev PL3 but my copied files still wouldn't work. File permissions show up fine via FTP. I've finally stuck with PL3 for my choice as payload after swapping back and forth for a while.
I might give this a try as well. Anything to avoid a complete reformat of the HDD right now. I just went through that a few days ago to see if my problem would be corrected. I have too many games to re-install again so soon.
if you've got normal 3.41 might not make any dif, but yes you can install update from recovery its option 6 and yes it will install 3.41 over the existing 3.41 even though they're the same, can't be sure if it will help but give it a try and no it won't format ur drive you won't lose anything, make folders in CAPS PS3 AND UPDATE, put the update.pup in the UPDATE folder then put UPDATE into the PS3 folder and copy to usb flash drive. go into recovery on ur ps3 and give it a go
I might give that a try as well. Anything to keep from reformatting the HDD again. I just did that a few days ago. I don't wanna go through that again so soon.