X-andre
Imported Account
Mar 16, 2001, 7:56 AM
Post #9 of 9
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OK Bob I am not going to discuss with you on who thinks who knows what with you. I am looking forward to do this privately. But to the point now: can you please give me some refs where I can find more about your point? If so many "fools" were doing this there must be at least some written reporting.
Andre
: Lets try facts first, then you can lecture me with 'theory' I reasonably understand the error correction scheme in DV. If you have been on the 'net for a while you would know I used to offer lots of DV info, but no so much now because of so many like you that have some 'theory' or 'idea' or 'think they know' how something is and will argue that in spite of fairly clear evidence to the contrary. Yes, I agree that there are errors that occur in DV cloning but the simple fact remains that there have been several tests (not theoretical but actual) done and the result after 100 generations was visually the same as the first generation, not the "strongly degenerated" as you 'guessed'
: Andre, I am not "frustrated" but rather just disappointed that the 'net has become such an unreliable source for accurate information on ANY subject.
: : Frustrated Bob? Read this first: http://www.adamwilt.com/pix-defects.html so you can get convinced that other people too, (sometimes) get dropouts... Once you are there, I can explain you how and what "Reed Salomon" error correction does on DV data streams and when error concealment comes in.
: : Andre
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: : : Bad Info! Several "fools" have taken MiniDV down 50 and 100 generations and have reported that the 50th or 100th generation was visually perfect. Your 'conclusions' are wrong.
: : : : Firewire is indeed a data tranfert and copying story, but it is good to know that the code correction (in case of transmission defects and/or tape dropouts...yes DV recordings have dropouts!) is not as complete as it is in the computer (HD..) environment. Depending on the kind of defect the code (data) is corrected or the defect is concealed. Successive concealements can finally degenerate the image quality. Conclusion: you can copy 100 generations out of a floppy on your pc and still keep bit by bit simularity, but your DV data will be strongly degenerated at generation 100. Of course...only fools go for 100 generations, but it remains advisable tot limit the tape to tape generations.
: : : : Andre
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: : : : : : Okay, say that I shot footage using the VX1000...but transfered it through the firewire on a different DV camera...and back on the DV with the other camera which isn't as good quality. Would this matter at all? I'm guessing it would be exactly the same as doing it through the VX1000?
: : : : : Firewire just transfers data...no generation loss.
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