how did you format your 500Gb to fat32 , i know that to format an large hdd to fat you need an special tool.
maybe this has nothing to do with your problem but you need to do all the steps right

But if the file // game save is protected, wouldn't that stop the transfer? Like a PC, if a file is protected, you cannot copy it.

It gets to 40% and says, USB cannot be accessed, as if something is stopping it, like a protected file.

Most games do not allow trophies to be unlocked by simply having a 100% complete save file.
Also, how about ROCK BAND 1, no trophy support; same as VEGAS 2.

They are just copyright protected. VEGAS I understand, the save data ties together with your online profile (so if you ranked up to 11 or w/e in single-player, thats your online rank). ROCK BAND doesn't really have anything that would cause this though.

Can you use something like this, and copy all the data too the new HD using windows?

http://www.newegg.com/Product/ProductLi … drive+dock

Using a hard drive dock, transfer all data to pc and back to new hdd and put in the ps3?

Okay, thanks for the information, maybe someday someone will write a hack to bypass copy protection.