my itunes folder is like 81 gigs but only 75 is reported in itunes...

Are you using SL? iF so, finder uses base 10 but iTunes uses base 2, so that would account for the difference.
 
Are you using SL? iF so, finder uses base 10 but iTunes uses base 2, so that would account for the difference.
Ah, but it is the "about-face". Finder would show less and iTunes would show more.;)
 

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look at the pic i just posted. Dont you remember how when SL came out people were like, "OMG it gave me 15 gigs back instead of 7!!" but it was determined it was because of Base 10/2?

Your pic doesn't show anything, look at it, one says MB one says GB

To the OP:
Finder shows 81Gb. which is 81*(1000^3) bytes
iTunes shows 75Gib which is 75*(1024^3) bytes.
These are the same number of bytes (approximately).
 
look at the pic i just posted. Dont you remember how when SL came out people were like, "OMG it gave me 15 gigs back instead of 7!!" but it was determined it was because of Base 10/2?

The Finder box on your screen shot is showing the available disc space so doesn't prove your point. ;)
 
look at the pic i just posted. Dont you remember how when SL came out people were like, "OMG it gave me 15 gigs back instead of 7!!" but it was determined it was because of Base 10/2?

No, the Finder will report a larger iTunes library than iTunes will tell. Just remember, because of Snow Leopard everything is bigger in the Finder.

However, I would venture to guess that there are movies and television shows in the iTunes library that aren't showing up in the Music section of the library, you have to add up the different source lists in iTunes to get what the Finder reports.
 
No, the Finder will report a larger iTunes library than iTunes will tell. Just remember, because of Snow Leopard everything is bigger in the Finder.

However, I would venture to guess that there are movies and television shows in the iTunes library that aren't showing up in the Music section of the library, you have to add up the different source lists in iTunes to get what the Finder reports.

Actually, if you look at my calculations above, I don't think anything is missing.
 
Thanks swiftaw, I think you are right.

One thing that does perturb me about SL is how values are reported differently across the OS. One example being my original question. Another being activity monitor reporting only 3.75 gigs of ram (I am running 10.6.1 on a late 2008 15" MPB with 4 gigs of ram.) I assume this is because the 9400m is using 256mb of system ram for video.. but the discrepancy is still there when running the 9600 discrete graphics... possibly something related to openCL on SL?? (10.5 reported a full 4 gigs)
 
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