Your problem is unclear. You say that the shrink volume attempt failed, correct?
You said that your initial volume size was 148GB but since the failed volume shrink, you have lost 30GB, correct?
In "My Computer" what is the current size of your C:? Is it 148GB or 118GB?
You say that there is no unallocated space when you view your drive in "Disk Management" but the title of this thread clearly states that that you have 30GB of RAW partition space. Where have you got that notion from, if not from Disk Management?
RAW usually means that your filesystem has become corrupt. If that is the case, or if you have genuinely lost a volume on your hard drive, then you need to use TestDisk to recover the volume or rebuild your filesytem. Here is the how-to:
http://www.cgsecurity.org/wiki/TestDisk_Step_By_Step