yet another 'what's the other in my storage' thread

[jojoba]

Just to clear that up first, yes I have read many of the other threads on this.

I had about 60something GB of 'other', so I decided to do some of the stuff recommended in the other threads. I used Disk Inventory X and Grand Perspective to try to get an idea of what was going on, I emptied the trash, I deleted the sleepimage file as well as other stuff, I asked Spotlight to reindex the entire hard drive and I restarted the machine.

However, the result is now that 110 GB show up as others, while the app and audio ratios are almost gone

Now, the total is probably correct, but it there any way that this can be 'reset' so that I get a more correct representation of what constitutes apps/audio/video etc?

I have a mid 2011 13", if that makes any difference.