February 15, 2004
Results:
Well, this project took over
15 days of work and the results make for a much shorter article than I
had anticipated. Here is the final result:
The 100th generation
CD was exactly the same as the Master CD
Every single file on the
100th generation disc was bit-for-bit the same as the Master disc!
I don't know about you, but I was very surprised by this result.
I expected that somewhere during the generations, there would be an error
because of either CD-writer errors or bad media. This doesn't mean
that all CD-writers and media are perfect, but it goes to show how mature
the technology has become. I'm sure that if I went and made more
generations of the original disc, eventually a bad copy would be created.
So some of you may be saying
to yourself, "Well, duh, we all knew that you could make digital copies
without any degradation". I agree, we all probably believed that
without proof. But have you seen anybody test it before? Now
you have.
After doing all this testing,
I am more understanding of how the movie and music industry feels about
digital technology. Obviously it is a tremendous danger to their
profits. They don't worry much about analog technology because 100
generations of a video tape or audio cassette tape would result in a completely
useless image, but as we can see here, 100 generations of digital media
has the potential to be perfect.

Well, now that this test
is done, I'm still trying to figure out what to do with a stack of 100
already burned CD-R's. Any ideas?
Brian
| Additional
Information |
Resources:
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TestParth
- Performs a bit by bit comparison of directories and files
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