How to determine source of file corruption for downloaded images?

Posted by sunpech on Server Fault See other posts from Server Fault or by sunpech
Published on 2010-04-13T17:50:30Z Indexed on 2010/04/13 17:53 UTC
Read the original article Hit count: 521

Filed under:

image

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Corruption

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data-corruption

I've been downloading Visual Studio 2010 off of the Dreamspark.com website using Akamai Downloader. The .img file is 2.2 GB in size. I've downloaded it twice so far, and when I try to mount it using Gizmo, it complains that "the disk structure is corrupted and unreadable". The drive does mount, but it is unreadable.

Is there a way to determine where the source of the data corruption is coming from? Is it my computer as it's receiving it? The hosting server(s)? My ISP? My router? My ethernet cable?

It's a hefty download to do again and again from home, only to find out once it's fully downloaded that it's unreadable. I think I can almost rule out my PC, router, and ethernet cable, as I've been able to download various other files without corruption.

Note: There is no checksum to verify against

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