Large Capture File Analysis

Hello list members,

I have a large Ethereal capture file (12 GB) of VoIP data. Since the 
problem is intermittent, we had to let the capture run for around a 
week - otherwise I could've used a capture filter.

I'm trying to use editcap to break down the capture file into small 
chunks. The problem is that I don't know how many frames are in the 
capture file, which I need to know to break down the file using 
editcap. I use capinfos and it seems to sit there for more than 1/2 hr. 
I didn't wait for longer than 1/2 hour but I could if I have to.

Just wondering if anyone has experienced the same problem. Help would 
be appreciated as I really would like to analyze the capture data :-)

Cheers!

G. Nanda