Too many unknowns to be of much help. 

Can't even begin to answer your question about what software would produce a 
given corruption pattern; there are -so- many possibilities where a translation 
might occur and thus corrupt the data. Indeed, the corruption might be as 
massive as what you are seeing, or as small as just a single charaer. The 
translation may even be happening more than once. 

For example, I have seen Windows translate a file sent in binary mode. I had to 
actally name the incomming file xxx.BIN to get Windows to leave it alone. 

I don't know of any good way to attack this withoug going all the way back to 
initial file creation, understand the file attributes (to include local code 
page), then step through the transmission process understanding exactly what is 
happening at each step.  

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Paul Edwards
Sent: Saturday, May 05, 2012 8:55 AM
To: [email protected]
Subject: corrupt zip files

I have a zip file that appears to have been produced using pkzip for z/OS.

However, it looks like it has been transmitted using some sort of text 
protocol, because the high bit has been stripped from most bytes, and some 
other bytes appear to have been translated. e.g. I think x'0a' in the input 
file has been mangled to x'b6' on the way. Does anyone know what software would 
do a translation like that?
..snip
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