I had installed a 3.55 CFW and had Blu Ray moves playing. I'm not sure if I had some type of file corruption, but used a ftp program to backup and delete some files. The end result was that I lost my Blu Ray move playback. I tried a bunch of things to get this going again.
1. What files do I need to get the Blu Ray player working?
2. I also read that if I downgrade to $ony 3.21 (not sure if this is the right FW) then back up to 3.55, I can get it back. Has anyone tried this?