QUOTE(telo{+} @ Jun 4 2007, 01:31 PM)

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There is absolutely nothing currently that says if your DMI extracted correctly. A CRC32 database of all the files for every game is not a bad idea. Do you just assume you made a great copy ? What happens if later down the line we find out that Kreon drive are not reading / truncating the last byte of DMI ? How would you - even though you backed from original know that ? We just found out that Hitachis are not extracting SS correctly, so it seems finding a similar problem is possible. Are you implying that you've personally gone over all this program source for beta 8 and checked it for errors ?
Would pirates use a database to verify their illegal backups ? Hell yes they will. Does that mean that since a tool 'could' be used for piracy that its a bad idea and should be kept from people or not developed ? Thats good fascist reasoning.
From what I understand the PFI is checked against the video but it may still be possible for one to loose/drop/transpose some bits and still return a valid check. As I said above their are very few rules to check DMI against. SS is checked against the XEX but since I don't (and I'm betting neither do you) know the exact check rules and it may still be possible to get a bad SS that passes XDVDMulleter's algorithms.
I'm sure its not needed for all parts (perhaps SS is hashed against the xex or w/e). But, a database is a great idea for those of us that would rather take the two seconds and double check rather then just assuming everything worked as it should have. To some people getting banned is a large inconvenience.
As far as an invalid submission goes; I think it would be rather obvious if someone checked their original got a bad read - they could report that the database may be wrong. Also, its likely that the database organizer would not accept only one submission per game. It might be a good idea to accept many submissions from trusted sources and then display a % of accuracy.
This program would not need to host or contain anything even close to copy written. Any CRC whether 8,16,32,CCITT, DNP etc are perfectly legal no matter what they were derived from.
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The type of errors you are mentionning would not happen if you extract yourself, and validate with Mulleter and Schtrom/XBCr.
A few things we need to clarify, first this is the Xdvdmulleter Beta 8 thread, not the debate on XS policy thread. Chancer has given a ruling on that one, and I agree fully with it as well. I will explain why it is like that, not negociate.
Stop playing the martyr that will be deprived of a useful tool because there are some pirates, that is totally not true.
First extraction with Samsung drive/Kreon is not prone to errors, in fact it is rock solid. So
if you add that extraction to the stealth check in xdvdmulleter and XBCR/Schtrom you are absolutely totally covered on doing backups of your originals . Where images do not match with DMI, PFI and errors in file exist is in downloaded material, and we see the results of that everyday.
In fact, the likelihood of an error on a self extracted/validated(mulleter and schtrom) image compared to all the errors in the warez mess is simply negligible.
I do not remember obtaining a bad image from xcbr, now we would like to allow a feature that would be a piracy dream, based on the possibility that;
1. there would be a bad image (without XBCR seeing the errors) ,
2. that error would just happen to be in the very small area defining the stealth,
3. it would not be detected in any way by any of the stealth check (XBC and mulleter), and
4. but all that will be detectable by MS!!
You want us to believe that, when I have not even seen just 1. happen yet.
Also welcome to life, are some things not allowed because most of the time they would not serve the right purpose, yes all the time. Here the chances of helping warez stuff compared to an error going thru all that ^^ is a million to one.
As for the comment on CRC based compare being legal, you are plain wrong. If it identifies the file uniquely, it is not different than a site giving filename and telling which goes with which, not because it is numbers that the intent is different!!
So the rules going forward:
-This thread goes back to its purpose, xdvdmulleter beta8
-Discuss on the stealth check while respecting other rules
-No more CRC/MD5 discussion as per the decision already taken
If Chancer is not down for the last shower (he is from UK), I have seen a snowstorm before. In conclusion, this MD5/CRC database will not help the people doing their backups, from their originals and doing a stealth check with mulleter & XBC. The real use will be for all the other cases that we do not want discussed at XS.
Case closed, no more discussion on that subject here (sorry badsheepy that your thread is messed up).