I got a message asking me to download new FW 2.91…the page simply does not load and after waiting a while, it displays a load of gibberish that looks like it might be code.
I can’t help but wonder if there’s something about the file extension (.img) that’s causing your Mac to corrupt the file, as it might think it’s an image (i.e. photo) file. Start by checking that you have the full file name (sandiskmediafirmware-2-91.img).
If I were you, in lieu of figuring out the real issue, I’d try to find a pc somewhere (local library) and download to that.
I checked the fw i had previously downloaded via OS Mountain Lion and it said 64mb…trashed it and re-downloaded on another mac running snow leopard…this time the download said 102 mb.
Followed the instructions and it worked perfectly…now running 2.91