Check and see if there's a .tmp file in the folder where your scene file was saved,.........it would be the same size (in MB's) as the original .br5 file(probably named AX something.tmp),..........if there is one,..........change the file extension from .tmp to .br5, then try opening it. This works for me sometimes when files become corrupted,.......most of the time when Bryce has a problem there will be a .tmp file generated,....if there is no .tmp file,.......I dunno what to tell you.

"Any club that would have me as a member is probably not worth joining" -Groucho Marx