finally cracked this earlier today...variation on what i've seem some folk using, but it worked.  Note: you gotta do this from powershell, vs a normal command prompt:

-r ([char]0x0A)

Thanks man! Old post, but the DBCC/EmptyFile was exactly what I needed.

If this is still a problem for some reason, here's something i used to get the total space recently on a server. Hope it helps!

declare @toExec table(tid int identity...