Okay update:

Typed root, done all that, then it scrolled up loads of numbers says something about clusters being wrong etc, made a few files 0 bytes performed changes and is done, restarting it now, I'll update again after.

Okay I have loads of new files in my main directory namely like this:

FSK0000.REC
To 0012.

Wahey it works! Thanks pal! Nice job.

Assuming you can delete them, they might be corrupt files (or files with corrupt filenames) that were renamed.
And np mate

Yeh, it seems a whole folder of music was corrupted (that was when the N900 froze on me), even though it shows the files in the music folder they were in it says they can't be played due to the codec and they are just simple .mp3 files lol. Thanks alot for your help again, I've thanked you on every post you have made lol. Take care mate.