Nope, it's different. They have to be converted into a special format (.psv) to play on the PS3. And the only way as of yet to do that is with a memory card adaptor.
Best bet would be to hope someone with that adaptor can do the conversion. I'd recommend that you watch this thread:
Show the PS3 some love as well guys
There is one .PSV file posted near the end of that thread (post #26 - espnnfl2k5.zip), but it's not the most up-to-date one that's found here. As of now, it's the most current one that will work on the PS3, though. Also, as I laid out in the last post of that thread, there's a process you have to go through to actually transfer a PSV file from your PC to PS3. It's a real pain, but it's worth it.
